Thanks, Anja and all others chiming in.
I think about offering a track where I'll be talking about https://moodle.org/plugins/local_deepler Moodle Deepl Translator which makes your Moodle page multilingual in the blink of an eye. It is also nice if one has https://moodle.org/plugins/filter_multilang2 enabled, I do not know whether https://moodlemootdach.org has that installed and activated.
Pardon me, I'm deviating of the original thread which was about Matrix.