Mee too. K-9 doesn’t have the backup’s feature for pop3 protocol. So It cannot permit to save mail locally, for me it’s the base for a privacy focused e-mail app. IMAP is fine.
The ideas, the independence, the foss creation and the community behind the project.
The phone number is used only for registration by Signal. It’s not used as a ID for registration.
I had some good experience with gentoo’s community.
You must delete metadata from the file too.
I think Linux Mint is a better option for privacy and stability overall.