I'm also a happy AMD/Linux user. I have the same GPU as OP, but with 5900x, 64Gb of RAM and the x570 motherboard. Except for Bluetooth, everything worked without any headaches. There was some screen/display issues at first (related to the card, but I got it 2 weeks after launch and AMD hadn't shipped official drivers back then) but now it has incredible performance to run multiple screens without any lag.
One suggestion: Get an NVME with a heatsink. The difference in write/read speed is simply ridiculous. You can get 5-7Gb/sec speeds and it makes your environment ridiculously lightweight.