Nov 14 16:23:38 NIKOS-TOWER kernel: amdgpu 0000:0a:00.0: amdgpu: amdgpu: finishing device.
According to the syslog snippet you posted you are loading the amdgpu driver which will prevent the card being passed through to a VM. Either stop loading the amdgpu driver or, if you need it for another AMD GPU, bind your 5700XT card to the VirtIO driver on the Tools -> System Devices page.
As mentioned in the release notes, at the top of this page,
which would explain the different behaviour.