I’m using it as my player now too and it is a 4K player. I do have the avr marked to decode everything but it seems to me it only works that way directly into avr. But like that, the 4K part of it is not right when looking at the 4K details on Xbox. When xbox is directly to tv, 4K details is some what better but there’s still areas where Xbox is saying the tv doesn’t support something, which the hdr stuff is correct cuz tv doesn’t have it but everything should have a green check mark by it and it doesn’t. Also it only decodes Dolby digital directly to tv, can’t get any hd audio