I’ve got Readrops (android) which has freshrss support for when I get my instance up.

Which client apps do you use?

I found it didn’t work for me until i was almost A2.

Didn’t the folding phones originally get destroyed by people removing the factory screen protector?

There are github repositories where people curate a list of domains providing temporary emails or email aliases and admins can just point to the maintained list to block.

In the ~20 I’ve created so far I’ve had 2 services that wouldn’t accept simple login. For those I’ve used proton mail’s built in email alias service where you get 15 aliases with their proper domain.

To everyone saying they’ve changed to protonmail, check out https://simplelogin.io/ , owned by proton and free for all paying proton members. Unlimited email aliases so you can have a unique email per service. The apps also on fdroid.

OneNote web interface can work as an intermediate step while you work out alternatives. May I suggest either obsidian or logseq with syncthing or webdav.