That seems like the opposite of what the quoted Reddit post says: >those with newer machines needed to either have the HEVC codec from the Microsoft Store remo

That seems like the opposite of what the quoted Reddit post says: >those with newer machines needed to either have the HEVC codec from the Microsoft Store removed entirely from [Microsoft Media Foundation] or have hardware acceleration disabled From this it sounds like it's been disabled at a lower level, but Windows still expects it to be there and so fails to decode streams unless hwaccel is disabled