Looking at a review on YouTube , they mentioned how these units don’t have 4k60 yet??
was about to pull the trigger for my incoming Xbox series X
Could go the Arc route but seems messy at the moment.
I think you mean that the new models haven't had their 8 and 4K/120 abilities engaged yet? This is known and Yamaha suggest that the HDMI version 2.1 abilities will be tuned on via a firmware update in December.
The receiver as it ships does include 4K 50/60 compliamce and this wouldn't be anything new.