Lenovo ThinkPad or dell for Linux is fine. Lenovo run their QA off of Ubuntu live USBs. AMD is traditionally better for desktop GPU support but either is fine.

Lenovo ThinkPad or dell for Linux is fine. Lenovo run their QA off of Ubuntu live USBs. AMD is traditionally better for desktop GPU support but either is fine. Particular hardware doesn't really matter these days, just check the manufacturer website / reviews. Level1 techs on YouTube cover Linux support well for various mobos.