I have an Oryx Pro 5 and running Fedora, while I have not experienced the constant fan running while in Nvidia mode, ever since installing the copr for the system76-power/dkms/driver/firmware my speakers have not worked much more often than they have worked and I can’t uninstall the dkms. The drivers have to be reinstalled every couple of reboots to regain control of the keyboard backlighting.
But the biggest issue currently is my laptop display is no longer detected after an Nvidia/kernel update. (Laptop Display not Detected) I can only use external monitors.