If Apple were a different company, it would've made maps available for use on web browsers and non-Apple devices. That could also help in a more rapid improvement of maps as opposed to the mostly-useless state it's been in (except for a few countries and regions in certain countries that Apple likes and works more on).
> and still a little YouTube (anonymously in a Firefox container)
If a Firefox Container is an option, then I'd rather prefer Startpage to DDG for search. Most of the time, I end up performing the search on DDG at least twice (the second time with a bang command to go to Startpage or Google) or I have a heuristic that DDG won't help and just go to the other search engines.
> DNS → Cloudflare DNS
Others to consider are Quad9 (9.9.9.9) and NextDNS (if you want ad and tracker blocking lists to be configured at the DNS level, sorta like a Pi-Hole, but on the cloud).
> I feel like I've won a lot by doing all this. I own my data now, so Google can't arbitrarily take it away from me, which gives me peace of mind. I'm no longer part of their ad ecosystem, being tracked all around the internet and having my attention sold to the highest bidder.
The "Google can't arbitrarily take it away" is a good argument, but "I'm no longer part of their ad ecosystem, being tracked all around the internet" requires a lot more effort than just avoiding using google.com, youtube.com, gmail.com, etc. I'm not saying that the current transitions are useless, but that there's more to it.