While amd is certainly better compatible I would still first search for the specific card you are buying and see if all it’s drivers are there or not.
Btw, you can also try to switch back to x11 from your sddm screen there should be a small drop down there just below password field which should let you choose between x11 and wayland.
Choose x11 and try launching apps without the flags (since x11 doesn’t need them).