SSUPD Meshlicious is my case. No branding, crazy airflow and very small. But fits a 3080 easily. The problem is that you’re limited to Mini ITX.

I was wondering whether they were defective 5800X3Ds I’m looking to get a 5800X3D sometime soon, to squeeze as much life out of my b550m cheapo mono as possible lol

BT dongles are a dime a dozen on Amazon. The tricky part is finding a good one, as the reviews are all fake and the manufacturers change names every week, so you never know what you’re buying. There might be the odd review site out there with some useful information