fuzz0r

Running with XMP enabled or disabled? It is an option in the BIOS.

It could be your upload speed, I'm not totally sure. More discussion here. Seems someone recommends 8mbit up for 720p30. What EXACTLY is your upload speed? I'd like to see a screenshot from speedtest.net or wherever you do it.

Heard good things about Red Devil, don't honestly know the ASRock Challenger.

Have you kept an eye on the temperatures of your system while gaming?

Microsoft Teams preview exists in the Pop! Shop on Pop!_OS.

It means you have faulty memory (RAM). You'll need to RMA them if they are still within warranty.

Have you tried downloading the whole driver package for your card? I mean gone to download from nvidia.com?

Yeah you will need to test it in another PC. What are the specs of the PC in question?

Looks more like a dead graphics card to me. What are the specifications of your system?

Usually people distro-hop for a bit until they find something suitable. I know I did at least.

That would depend on how your network is set up. A network is only as good as it's weakest link. What kind of router do you use? Are you using a switch in between, if so what is that switch capable of?

I'm afraid you're going to need to get ahold of a new motherboard to test with. That would be my next bet.

I believe they recommend Ryzen Master to keep track of temperatures for Ryzen CPU's. Don't honestly know if the Windows one can do it properly.

No you'd need to run it without your graphics card in the slot. Just because the fans ramp up doesn't mean the PSU can't be at fault.

You will need to try to remove one thing at a time, then try to see if it boots. First I'd remove the graphics card, and run on the integrated GPU. Then I'd remove hard drives (one by one). Then lastly I'd test the memory by taking one at a time and placing it in the correct first slot. If you get to the end and nothing still happens, could be motherboard, CPU or PSU. If it were me, and I got to the end and it didn't turn on, I'd try a new PSU.