Seems an awful lot like
> sysadmining my laptop
Perhaps you meant to say "learning a new system involves a lot of mental effort". I get that sentiment and don't even disagree (the first quote is a part of what keeps me away from windows I don't want to sysadmin my windows install because I don't want to learn it).
I find switching to a different system (e.g. windows) makes everything feel hard because I have enough experience dealing with the little issues. With linux things that the stuff you declared "too much" is a 60-90s blip in my day due to familiarity, not a huge time-sink or rabbit hole. That familiarity means not just "I know what buttons to press" but also "I know where to look to know what buttons", "Consequences of pressing those buttons", "what are the red herrings when I go looking something up".
It's a different system with different patterns, thought models designed in, etc. Not that different from say, knowing C and trying to pick up an ML as a second languge - it's not that the patterns are bad or the language "isn't there", it's hard because it's a bunch of different concepts than you're brain is currently patterned for.