Using apps that cant provide anonymity and at the same time not the ones that do is very dangerous for society as a whole. Some journalist and activist need anonymity and if only place where they can be heard is on mainstream apps that don’t offer anonymity, they are stuck.

Yes, I write credentials in a file and encrypt them with my public key. Then I use my private key to decrypt them when needed.

https://lemmy.sdf.org/post/561486

I use gpg to encrypt my passwords with my public key. Benefit is that adding credentials to a new file doesn’t require me to type the master password (password for private key). I trust gpg the most for security.