bazzite-asus stuck on iGPU, doesn't recognise AMD dGPU

Hi all. Just tried setting up Bazzite for the first time on my ASUS TUF A16, using the bazzite-asus image. While the system sees the AMD 780M iGPU just fine, it can't seem to see the AMD RX 7700S dGPU at all. switcherooctl list only shows a single device with ID 0 (https://paste.centos.org/view/f1d43c85).

The dGPU continues to be properly recognised in Windows 10, and it was being recognised in Kubuntu right up until I wiped that partition to replace it with Bazzite, so I can at least rule a hardware issue out. Not entirely sure if this is a bug or just some sort of configuration issue though. Would greatly appreciate any assistance.
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