buncha folks are running linux on macbooks, but their experience will be of little use to you as T2 macbooks are hella complicated in that regard.
the wifi going away, unless it’s the published fix on t2linux (restart NetworkManager on resume via systemd), is something you need to describe in more detail.
never had/heard issues wrt trackpad, I’d have to look into that.
not waking after sleep promptly is due to softlocks on the CPU; it will wake eventually. if you’re not happy with that, there’s a short script that shuts all cores off prior to standby and reactivates them on wake; that puts the wake time to a coupla seconds.






syncthing to sync your notes folder (and your pictures, audiobooks, whatevers); then the editors can be anything, i.e. whatever you prefer on each platform. sync over the internet can be disabled and set so it works only on your home LAN. also, sync direction, maybe you want it to sync only one way. turn on versioning to get at the version from two weeks ago. etc.
you should be in the know by now to not get locked in by any one provider or app. always go with the thing that gives you exit options.