I find motherboards more a matter of reliability vs. features these days, but depends on what you want to do.
If you want to tinker with overclocking, I was last using MSI with K-series Intel procs after being disenfranchised with Asus after many years of failed motherboards and other issues. They all vary from generation to generation... Read the 1 star reviews on newegg or amazon to see what is pissing people off for what they're really about before buying.
Last round of desktop builds I got a Dell Precision desktop that is more server than desktop; dual cpu, 16 memory slots, 4x 16x pcie slots, another few 8x I use for M.2 disks, etc that has proven server reliable. This is good, because it's both my desktop and my server these days for numerous VM's. I got a really good deal on a refurb'd box loaded with 20 cores of cpu on ebay watching and waiting, just added ram/disk/video/other as needed.
If you can afford M.2 ssd disks, get them, otherwise sata-based disks are fine for os, homedir, etc. Throw in some spinners if you need big space, otherwise use an external nas (or both). I like to replicate really important stuff between local and nas using Unison.
Video cards, if you really want to stick to oss drivers, AMD wasn't bad last I used them a few years ago. I had an old 7950 card I used for many moons due to it's 6x video output that I used all of, and by the end, it played steam games quite well using oss drivers, NOT binary. It had bugs (I remember early Shadow of Moridor had odd texture issues for an AAA game), but others like the Saint's Row games played fine. I used it for a bit on my 3x 4k displays, and oddly it worked it worked rather well there too, still play games like Saints Row 2-4 at 4k res at fairly high frame rates, even with oss drivers!
Now a days I use nvidia, a 1070GTS, binary drivers are mostly the only way to fly with nvidia. That works rather well with most linux games, and lately more even with Steam Proton for windoze-only games. The nvidia performance is pretty stellar in most games playing 4k full screen at good frame rates on most games native or proton-based, worst hit I've seen lately was playing Subnautica at 4k, but man it was beautiful even running at 15-20fps @ 4k res.
I've not had driver issues in a long while, or anything special around certain motherboards or other core components that made me choose one linux over another. Save maybe laptops, but they're entirely different beasts.
Hope this helps!
-mb