Finally looking to build a new rig after about 7 years on my current machine. Will largely be used for gaming in Linux, although I may wind up throwing in a second drive for dual booting to Windows for games that don't work well on Proton/Wine. Also using it as a home theater box for streaming content.
It's been a minute since I've looked into the hardware scene, and while going Nvidia is tempting for the DLSS and ray tracing, at this point I feel like I'd rather give AMD my money simply on principle.
I think your case will fit a full sized ATX motherboard.
In my experience, Micro is more expensive. You're paying for compactness. Plus a full size could give you more RAM and PCI slots, for future expansion.
I don't really see myself doing much upgrading, haven't changed anything in my current setup since I got it. The four DIMMs should be enough, and I can't think of any PCI devices that I would want to add in. That and looking at their other offerings yields a bunch of nausea inducing RGB and jumps way up in price. I'm not dead set on this mobo, I was looking at recommendations for manufacturers and it seemed the consensus was that ASRock was a decent pick. If there's a different option that makes more sense then I'll pivot. My current setup is a Gigabyte that has some pretty bad issues, I can't even get into the BIOS anymore.
From your mention of preferring to give AMD your money over Nvidia, I'm going to guess you've got pro-consumer principles so I don't recommend ASRock.
Check this out for further details.
Looks pretty solid! I'm a fan of the air cooler, I've built with both and after having the pump fail suddenly on my AIO I won't use anything other than air.
One thing to double check would be RAM clearance for your CPU cooler vs the height of your RAM. Idk if pcpartpicker checks that and it would suck to get into your build and have it not fit correctly.
The DIMMs were touted as being low profile for compatibility with a bunch of air coolers, I'll have to double check to make sure this pairing works though.