Question about Gigabyte B550 AORUS Elite V2

I chose this motherboard because it was recommended by the German computer magazine c't in this year's Bauvorschalg (economical, powerful). In my opinion, the board makes sense together with a RyZEN 5000, as it supports PCIExpress 4.0. The manufacturer promises 5000 support, but a BIOS update may be necessary, which should also work without a CPU. ATTENTION: The network connection only works under Linux from kernel 5.9 (i.e. you may need a USB network adapter or something to bring the kernel to version 5.9 under Linux. I played through it, it works without problems).