The data at CanIUse.com seems to suggest they're going backward and used to have an installable plugin: https://caniuse.com/av1 https://caniuse.com/av1 see al

The data at CanIUse.com seems to suggest they're going backward and used to have an installable plugin: https://caniuse.com/av1 https://caniuse.com/av1 see also: https://www.thurrott.com/forums/microsoft/windows/thread/youtube-not-working-in-edge https://www.thurrott.com/forums/microsoft/windows/thread/you... Which seems to be claiming the software fallback has been suddenly yanked, temporarily breaking YouTube which fixed it by serving VP9 instead but maybe AV1 hardware decode is still working?