System Monitor does not show my AMD Radeon 5700 XT GPU.
Should it?
If not, can I add it to System Monitor?
I did some reading and I've seen comments about updating the GPU driver and switching to x11 desktop. I did both but I still don't see the GPU.
I also read that I should check that my GPU is selected in 'additional drivers', but I think that is only relevant for nvidia, as I see nothing listed.
In my BIOS secure boot and quick boot are Off. And my PCIE slot with my GPU is select as the first.
I can play games (Metro 2033 and Conan Exiles as example) and my GPU is working well.

