Yeah, it's still a compressed youtube video, but it's not exactly a 240p video where you can't distinguish the differences. I find their videos to have a pretty good bitrate tbh.
Well, most of the times no. DF usually misses on many of these details since this generation began. As it stands, NXgamer seems to spot these sort of differences much more, he has more of an analytical eye, nothing escapes him and that's a good thing in analyses.
Well according to Candyland's description, hairworks is in on PC, I didn't mention it before but to me Geralt's hair looks better on consoles, kinda looks more static in certain scenes and less realistic on PC. I also see no difference in foliage visibility on PC against consoles in the video, they all look about the same to me, just some extra fog in the pc version.
There is definitely a problem with the xbone version with dust particles though, it's missing entirely in that video and that early scene with the horse galloping was pretty much like for like and runs on for a bit, the dust particles are on PC and PS4 in several instances but never really shows up on the XBONE. OTOH, smoke/fog seems more dynamic or at least varies, especially in the distance but it's there in all versions in different volumes at specific times, a galloping horse however should definitely kick dust.
As for the hair, I'm definitely not impressed with hairworks, hair looks so much better on consoles. Around that part in the video.