I made a fresh installation of the 15.3
then
I installed with Yast KVM and KVM tools
then
with https://software.opensuse.org/package/virglrenderer

I updated QEMU to 6.0.0 according to get libvirglrenderer >= 0.8.2 (0.9.1 in fact) with

https://download.opensuse.org/reposi...:regataos.repo

no problem with my 15.2 for the VM accessing to the webcam.

When I invoke the VM with

qemu-kvm -enable-kvm \
-m 2048 -smp 2 -cpu host \
-device virtio-vga,virgl=on -display gtk,gl=on,zoom-to-fit=off \
-device usb-ehci \
-device usb-kbd \
-device usb-mouse \
-device usb-tablet \
-device ich9-intel-hda \
-device hda-duplex,audiodev=snd0 \
-audiodev pa,id=snd0 \
-device usb-host,vendorid=0x046d,productid=0x081b \
-boot menu=on \
-nic bridge \
~/QEMU_VM/android_x86_7.1-r5.img \

When I launch the "opencamera" app, I get an error:

Fails to open the webcam
The webcam may be used by another app?
ID:0

Also, I get an error using WhatsApp video call.

This webcam (-device usb-host,vendorid=0x046d,productid=0x081b \) is a dedicated webcam. I get another webcam for Skype and other ones under openSuse.
I checked that webcam is good.

Deprecated feature, removed feature, syntax, ACL, anything else ?

Thanks