> For example, Apple only recently (2023) added support [for AV1].

Apple has been actively obstructing open video formats for a long long time—Apple is the reason there isn’t a baseline format for <video> in the HTML5 spec, for instance. (Or at least there wasn’t when the spec was still a well-defined document with a version number; I see no merit in keeping track of the “living” one.) Incidentally, Apple is a member of MPEG-LA and claims to hold numerous patents covering both AVC and HEVC.

At this point, whatever harms befall Apple’s users due to lack of Apple’s lack of format support are entirely Apple’s fault.