My gigabyte motherboard doesn't support Ubuntu!?

This is something I hadn't expected. The most recent BIOS update (F8) made my ethernet NIC unavailable and broke Nvidia support for my video card. So no network and low res graphics. I have a Gigabyte X870 EAGLE WIFI7. So it looks like I can't get any further updates as they tell me they don't officially support Ubuntu and are plainly not going to fix any issues.

I might swap it out: if I do what brands DO support Ubuntu?