Good read, thank you! kudos for considering that most time you don't actually need Docs per se but a notes app suffices, which I never thought of, yet organically moved in that direction
I noticed you mentioning standard notes and obsidian in other posts too. Personally I am deterred by obsidian as its not OSS and Standard notes have artificial paywalls for my taste. I ended up using Joplin (fully FOSS, sync, encryption)
Have you had a chance to give it a go or are there reasons you don't recommend it I am not aware of?