Questions about (AMD) PC to TV connection

So I just want to have a few questions clarified as I keep finding contradicting answers online. I’m about to build a PC hooked up to my TV to replace my PS5 in the long run. As I already own the Deck I thought I’d get everything on one platform, haha.
The PC will have the Ryzen 7 7700X and the Radeon 9070XT. The PC will be connected to the TV via HDMI and is a LG OLED C4 77. So here’s what I’d like to know.

  1. Is HDR supported?
  2. VRR seems to be out of the question but I thought I’d still ask here.
  3. How reliable is the sleep function?
  4. Can I have a wake system via controller set up?
  5. CEC also seems to be out but again, thought I’d ask.
  6. I have a 5.1 surround system with Dolby Atmos support. Anyway to set that up, or should I just stay on 5.1?
  7. I‘m also gonna have to put in a WiFi chip onto my motherboard. Are there known issues with those? Any I should avoid?
That should be it for now, haha. Thanks to anyone who’ll help out!
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