Some of you guys are melodramatic. I'm not being an apologist, but lately every piece of new technology takes some time to get where it needs to be. My 2016 Vizio P75 TV had several months of firmware updates to enable capabilities and fix initial issues. Same for the Oppo 203. Other devices as well.
I pulled my Roku Ultra in favor of Apple TV because of months updates breaking things. Continual red flashes, audio bleeps, and HDMI purple screen errors. If you plan to run a Roku Ultra through an AVR and turn your system on from full off and expect it to stably HDMI negotiate and be usable, I give you my best hope. It never worked right through my top end AV7702mkII Marantz preamp. Not the mention that box lacks DV support.
Gear: Vizio P75, Marantz AV7704, Emotiva XPA-11 Gen3 (coming), Triad Silver 7.2.4
Sources: Apple TV 4k, Oppo 203, Xbox, PS, Switch, PC
Xbox Live: TrackZ