HS> Since today I cannot play videos in chromium anymore. It worked two days
 HS> ago. In some cases (youtube, tagesschau.de) vidoes won't start playing.
 HS> 

This might not be a fix for you, BUT have you done that big update that came
out a couple weeks ago? It had a lot of Chromium fixes, for video
specifically....

But if its an issue that arose, its probably not Chromium and a video
issue/something got broke.

sudo apt update
sudo apt upgrade
first.



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--- Mystic BBS v1.12 A47 2020/11/23 (Raspberry Pi/32)