@user_naa
@lemmy.worldNo, this is not possible. Virt-manager is just a GUI over libvirt. For now libvirt doesn't support USB passthrought by port id, only by device id (which changes on each plug) or vendor id.
Kernel driver is loaded
# lsmod | grep radeon
radeon 1888256 9
video 77824 2 amdgpu,radeon
i2c_algo_bit 12288 2 amdgpu,radeon
drm_suballoc_helper 12288 2 amdgpu,radeon
drm_display_helper 266240 2 amdgpu,radeon
drm_ttm_helper 12288 2 amdgpu,radeon
ttm 102400 3 amdgpu,radeon,drm_ttm_helper
drm_kms_helper 253952 3 drm_display_helper,amdgpu,radeon
drm 749568 16 gpu_sched,drm_kms_helper,drm_exec,drm_suballoc_helper,drm_display_helper,drm_buddy,amdgpu,radeon,drm_ttm_helper,ttm,amdxcp
Then I have the opposite question: why Apple won't open IPhones for side loading if it will feet more money?