Confirmed I got the same problem. Just moved back from Manjaro.
- On Manjaro, I just need to follow guide from Arch Wiki (
media.ffmpeg.vaapi.enabled
totrue
) - On EndeavourOS, I need to add
MOZ_WEBRENDER=1
as @daniel suggested, on top of Wiki guide
The main problem is WebRender is forced to be software WR, which doesn’t satisfy the requirement from Arch Wiki:
Ensure you are not running Software WebRender as that will not work as of August 2021. If necessary WebRender can be force enabled…