A:Answer It actually DOES have an HDMI 2.1 port, but the TV is limited to 60hz, in other words, 60fps. I have an Xbox Series X connected. *Technically* it should work ok with a PS5 as well. A 120hz screen would be better, but few games support that rate at this point... and it's kind of superfluous given the cost difference.
However!!!
I just got this Pioneer TV and in 'game mode' (or when you have ALLS/low latency active) it very briefly freezes every ~6 seconds, which makes in ineffective for gaming. If Low-Latency mode is off, the delay is such that it also makes it ineffective for gaming. I'm trying to figure out if the freezing is a defect or expected behavior for this model. Either way, this one is going back.
My previous TV was a 4k 43" LG, also a 60hz, and its game mode worked fine. Forza Horizon 5 looked fabulous. (it fell and screen broke). :(