The "smashing" together of words is much less interesting to most of us who use languages that does so than it seems to be to others - it does little more than placing the words adjacent to each other does in English, with the exception that it disambiguated.
E.g. "hakke" on it's own is the verb to hack in Norwegian, but as part of a compound it will mean something that has been hacked, or is hacking (e.g. hakkespett = woodpecker - and there's another English compound)
Funnily, Norwegian (and Danish) has imported the French boef - Norwegian as "biff" - while we still use the Germanic ku for cow - but we also "smash" words together, so hakkebiff = hakkebøf (Danish) = boef haché.
But "hakke biff" would imply the act of chopping it. And so we compound to remove the ambiguity.
We also have flesk, from the same origin as fleisch and flesh, but in Norwegian it specifically means pork flesh, so hakkeflesk, while it's not a term I can remember having heard, would be understandable but refer to pork because the meaning of combining the words is fairly generic.
The one that grates on me most is “monolingual” (unilingual/multilingual or monoglottal/polyglottal)
I never understood what they thought was so funny.
Today we’d write it menslol.
So I would argue that “streetcar stop” still parses as a complete compound noun grammatically. This is just a matter of orthography in my opinion. German may more readily “freeze” compound nouns and put them into writing as a single unit, but both English and German are full of long ad hoc compound nouns.
In German, you would have to create a single word from the start (possibly using a hyphen for disambiguation) and in some cases pluralise individual words so they can be joined together.
But you are right that in both cases the result is just a single noun, which contrasts with agglutinative languages such as Turkish where the entire grammar of a sentence can sometimes be packed into a single, potentially very long, word.
English speakers are often amazed at how we "have words for everything", which makes it seem like it's been some conscious act of establishing a new world on purpose. Of course sometimes that is the case, but that process happens in English too.
But exactly because of what you say, directing that amazement at us just combining words is pretty much the same as if we expressed amazement at how English has sequences of words for everything.
It just looks different to English-speakers for whom the merging of multiple words into a combination they've not seen before is not a frequent occurrence.
Norwegian has "trikk" for tram/streetcar and "stopp" for "stop", and so we have "trikkestopp" for tram stop (but see below). Trikk was a case of "sporvogn" - "track wagon" - being too long.
Meanwhile, while "streetcarstop" is not in use in English "streetcar stop" is some places. E.g.[1].
"Streetcar stopping place" of course would definitely be a step too far in English, but so would it be in e.g. Norwegian that otherwise mostly shares the German approach to combining words (to the point where newspapers regularly have articles about how the language is going to hell because people fail to combine words when they should) but where we'd go "hang on" and omit parts or otherwise rephrase to find a short alternative.
However, we do have "stoppeplass" for "stopping place", though more often used for somewhere to stop a car for a longer period, and "holdeplass" for "holding place" which implies a more temporary stopp, and so we can and sometimes do also use trikkeholdeplass - "tram holding place" [2], but these longer forms tends to gradually be replaced by shorter ones over time, as Norwegian has a tradition for contractions (to the eternal frustration of foreigners learning Norwegian, because spoken Norwegian tends to drop syllables and whole words with wild abandon) and replacing long terms.
[1] https://www.buildkcstreetcar.com/project-news/stages-of-a-st...
[2] We can, and also sometimes do (but a quick search of the Norwegian national library shows it's quite rare, with peaks of tens of uses in print some decades), use "sporvognholdeplass". If you were to say that people would probably wonder what century you are visiting from (even though the full term was no more common before), but it'd be understandable.
In Sweden there was for a few years a webpage dedicated to the fight against incorrectly writing words apart, famously producing red stickers that were then used as hypens where appropriate: http://www.skrivihop.nu/exempel/bilder/fika_sugen.jpg
They got wildly popular but shut down after just three years because they felt they ended up attracting a lot of asshole followers that outright harassed people in their name.
The distinction between "fully merged" compounds, hyphenated ones, and ones with spaces is yet another one of those endlessly annoying quirks of English.
Being cognizant of these really helps develop empathy with ESL learners.
Read up on the Holy Roman Empire. Germany, France etc are quite complicated concepts.
Of course, the Franks came from further East and never replaced the populations they invaded, so even there and then both cultures and peoples were always mixed.
If you examine the richest landed gentry in England today a very sizeable number still bare the family names of those that fought for William at the Battle of Hastings.
> Der Brand (The Fire), by the historian Jörg Friedrich, accuses Winston Churchill of a conscious policy of airborne terrorism against civilians … The word “brand” in English, of course, carries a distinctly different vernacular meaning.
The upper classes were French after 1066 (Harold had definitively repelled the Danes for the last time just three weeks before Hastings).
https://en.wikipedia.org/wiki/Synthetic_language
See also: agglutination https://en.wikipedia.org/wiki/Agglutination
A portmanteau is different, where parts of several words are blended, rather than retaining the substance of each word in a compound.
https://en.wikipedia.org/wiki/Blend_word
And let's not forget xkcd's coinage of the malamanteau: