DecSync is amazing! Setting it up seemd easier to me than what is described I’m the linked article. Luckily that bug you are talking about hasn’t appeared to me.

I always wonder how would that even work? Encryption is no mystery and openly available to anyone.

Shotcut definitely works with Linux. Flatpak, Snap, Appimage, Tarball you choose.

Remind me again when there is a FOSS application for RCS messaging