Why not something like Notepad++ or KWrite?

I don’t think it’s OS dependent.

If you’re on Debian Stable you might have a version of Thunderbird that doesn’t have this feature, since software there is a bit “outdated”. Next stable (trixie) releases in few months though.

They better don’t attack too much, because all of the internet is built on FOSS infrastructure, and they might stop working, lol.

Erdogan doesn’t care about Turkish EU membership.

I am a communist by heart, but I know that social market economy is the way to go, at least for now.