I have to reinstall my GPU drivers after every reboot

[anon89812132]

Before you do the test as mentioned above, could you return from terminal:
mhwd -li

Since is a desktop pc the combination with prime-run is not quite ideal IMHO. Also in case you will want to attach more displays to each GPU, or possible to want to use the AMD GPU passthrough to a virtual machine … So, if you manually installed the nvidia drivers and the files i mentioned did not got created, then there might be something with mhwd as mentioned here:

Don't partially merge merge requests

You may remember this post I made on the old forum: https://archived.forum.manjaro.org/t/mhwd-nvidia-450-and-refactor/153559 I listed 3 merge requests that needed to be merged for this feature to work correctly, but for some reason only 2 were merged. This led to the following issues, both happening today: (There is no doubt in my mind that many MANY more users were affected by this) Additionally, this incident leads to wildcards not working AT ALL. I highly suggest merging and packaging…

That means, you will have to create also manually the file:
/etc/modules-load.d/mhwd-gpu.conf
With this lines:

nvidia
nvidia-drm

and

@anon89812132

/etc/modprobe.d/mhwd-gpu.conf
with this lines in it:

blacklist nouveau
blacklist ttm
blacklist drm_kms_helper
blacklist drm

Do not create any custom /etc/X11/mhwd.d/nvidia.conf and also remove the /etc/X11/xorg.conf.d/90-mhwd.conf

If this gives you trouble, add nomodeset as kernel boot parameter and see if that helps and from there we might be able to help more.