It is all and well within the limit of a "proportionate" response exercising the "right of selfdefence"! Wondering who decides where the limit goes.

https://onionshare.org/ perhaps?

Another Mull user here. It works very well for me and I like the fact that I can use content blockers like uBlock with it.

You could keep an eye on the PKGBUILDs. For Thunderbirds, for example, you could use the following in a RSS reader:

https://gitlab.archlinux.org/...

Scrambled Exif (Remove the metadata from your pictures before sharing them) https://f-droid.org/...

I have been using Discreet Launcher for some time now. It's fast and and distraction-free. https://f-droid.org/...