Eternity is working fine for me. Try logging in again (or clear the app’s data and then login).

This is a non-issue. Why not use Aegis and backup your own credentials? I wouldn’t trust Authy (or any 2FA app that includes cloud backup).

About $300. Lately I have purchased a lightly used Pixel off eBay (when the new generation drops) and have had great success.

Gotcha. That does make sense to me. Its hard to verbalize, but Firefox does seem a bit clunkier than alternatives. Chrome on Android also runs buttery smooth. I’ll have to give Edge a try sometime. I try to keep an open mind, but I do gravitate towards open source (when it makes sense and works well).

Why use Edge tho? If you want a browser on Android with extensions, just use Firefox. In my humble opinion: M$ anything should be avoided (unless there are specific benefits or features).

Set the battery usage of your essential apps to Unrestricted and your persistence problem is solved. Android has vastly improved its security by cutting off the workarounds shady (and legit) apps have used to persist. Some of these improvement are from GrapheneOS devs hardening the AOSP pipeline and increasing everyone’s privacy. You mention VPN apps getting neutered. I’ve never experienced Wireguard getting killed by Android and I use that app nearly continuously. I also use Syncthing all day. Setting its battery use to unrestricted keeps it working just fine. I use the app’s internal options to disable syncing when my battery tapers off. The hacky workarounds you speak of to maintain persistence on A14 should be killed off to improve everyone’s privacy.

I can recommend OpenBoard. Its open source and available on F-Droid or Google/Aurora. It doesn’t request Network permissions. As far as updates: it hasn’t been updated in 17 months. Its not updated extremely frequently, but it’s definitely not abandoned. It works great and I don’t see anything it needs added or fixed in my experience.