The RX 590 should be good to go with the kernel driver since last December: https://www.phoronix.com/scan.php?page=news_item&px=RX-590-Linux-All-Is-Good https:

The RX 590 should be good to go with the kernel driver since last December: https://www.phoronix.com/scan.php?page=news_item&px=RX-590-Linux-All-Is-Good https://www.phoronix.com/scan.php?page=news_item&px=RX-590-L... What that practically means is that any linux distro with a kernel at least that new should support your card without needing to download anything from AMD's website. (Generally speaking, downloading drivers from the manufacturer's website is a windows-ism. There are some exceptions, like Nvidia, but a machine well configured for linux use should aim to use hardware supported by FOSS drivers (such as your AMD card.))