You’re using the vesa driver currently. That explains why the limitations with available display modes.
Ah! Thank you. My next question is how do I change to the amdgpu driver which I installed using the amd installer. (that’s not to say that I necessarily installed it correctly)
AMD driver is part of the kernel I assume you installed AMD-Pro driver. Not sure that is needed. Note I use NVIDIA GPU so I may be talking out of my hat
If your GPU/APU/IGP is supported by the FOSS amdgpu DDX driver (xf86-video-amdgpu), it should be automatically used, as long as the required firmware is installed, and as long as it is not too new to be supported by 15.2. If too new, you’ll need kernel and/or driver packages from the (optional) build service, or build your own from source, or 15.3 Beta or Tumbleweed.
Solved!
After several attempts, and a leap 15.2 update I uninstalled amdgpu, rebooted and reinstalled amdgpu accepting the defaults.
I have had to repeat this recently after after a second leap 15.2 update.
Thank you for your help, suggestions and patience.
Hope you’re using this driver: https://www.amd.com/en/support/professional-graphics/radeon-pro/radeon-pro-w5000-series/radeon-pro-w5500