I recently discovered Filen and all their clients are open-source. It claims to encrypt all files before uploading and I did notice my CPU usage ramp up quite a lot during it. Though, I currently lack the time and expertise to audit their code.

What?

Linux Mint, my beloved ❤️

I am not sure. It has been like this for over a month.

Yes, I do have the same issue. Though, I noticed it with secure notes since I usually only update those. It does actually save the first time, it is just the UI that doesn’t update. You can verify it by clicking on another login and back to this one after the first save.

Can you currently install flatpak apps through commandline? If yes, check your software sources from Discover settings page.

How did you install Arch and Plasma? My installs always come with both flatpak and Flathub enabled by default.

Depending on the distribution you use, you might need to set up Flathub.