On top of that we shouldn’t distribute compiled binaries for the x86 and ia64 chipsets; instead program code should be distributed like .wasm, in a hardware-independent way, and compiled on the target device. That would enable that hardware can use any chipset it wants and there are no software incompatibilities because of it.
You're describing Gentoo Linux . . . which is not especially popular among Linux distributions even though it runs on just about anything. There may be a reason for that.
The question for me isn't whether or not there's a difference that I might be able to see if I were paying attention to the picture quality, it's whether the video quality is sufficiently bad to distract me from the content. And only hypercompressed macroblocked-to-hell-and-back ancient MPEG1 files or multiply-recopied VHS tapes from the Dark Ages are ever that bad for me. In general, I'm perfectly happy with 480p. Of course, I might just have a higher-than-average immunity to bad video. (Similarly, I can spot tearing if I'm looking for it, but I do have to be looking for it.)