Serious Bug! Microsoft Edge Chromium crashes when using YouTube

FYI
https://www.reddit.com/r/MicrosoftEdge/comments/mwfjjz/edge_v90_started_crashing_on_youtube/
https://www.reddit.com/r/edge/comments/mxls7w/edge_chromium_crashes_when_i_have_two_youtube/
https://www.reddit.com/r/MicrosoftEdge/comments/n0rlc1/edge_crashes_when_youtube_is_fullscreen/

In my case, codec "av01"(AV1) seems to cause the trouble. I'm not sure but "vp09"(VP9) nor "avc1"(h264) doesn't have this issue.
Uninstalling "AV1 Video Extension" app seems to solve it, however, I couldn't really uninstall this app since it will be re-installed automatically several hours later. 😞
I'm using enhanced-h264ify extension to block AV1 for now.

P.S.
I cannot see "av01" on YouTube today. If I block VP8/VP9/h264, "Your browser can't play this video" appears. Hmm...