I gave Tangram and Ferdium a look but the rendering engine they use is awful and makes my eyes hurt. Old Chrome/Chromium used to have the same problem years ago. I’ll stick to Librewolf pinned tabs.

It means feeling of affection, mostly used by anime weaboos: https://en.wikipedia.org/wiki/Moe_(slang)

Use an open source 2FA which lets you export

You can store your recovery codes as files in KeepassXC