My old laptop was a System 76 Gazelle with an Nvidia card, never had any problems with it. I am busy and just left the stock PopOS on there, worked fine.

My current is a Tuxedo Computers Pulse 15 II, with an AMD card. I love this laptop. I mainly bought to have something portable, more memory (64 GB) and quiet. The sold me on the quiet and battery life and it's fantastic.

Early on I had a couple of issues with the hardware suspend but they solved it through their tomte system. (I had an oddball setup I configured with two different drive manufacturers and it was messing with suspend. I found and applied config for my Samsung.)

The only issue I've had with the AMD card is that running Immersed to create virtual desktops for VR using inactive display imports crashes amdgpu. Pretty niche :). Apparently that's something you can do with Nvidia. I worked around it with an HDMI dongle.

Edit: most responses here seem to be the big manufacturers but you really avoid a lot of problems by buying from a Linux vendor. If you're busy, this is a real lifesaver.