VirtualBox is not a fault here - I don’t know what it is you are doing.
VirtualBox works flawless OOB on Manjaro - I use VBox VMs each and every day as part of my paid work as freelance contractor.
I therefore has firsthand knowledge that VirtualBox is not at fault - and I can tell from experience - this is a local issue - which is very hard for anyone to help you with myself included.
I have no idea and all I can offer at this point is speculation and questions. The answers may guide you in the right direction - and I have no idea where it is taking you.
What is the output of below commands
uname -a
lsb_release -a
vboxmanage --version
I am guessing the extension pack or remnants from a manual non-package-manager tracked installation is at fault here.
A normal installation does - at least in my experience - not try to load webcam libraries so something appears complete off.
Is the vm from some kind of backup you have made at some point?
e.g. a copied vm folder with all files?
Is the vm imported from an appliance you had created previously?
Is the vm imported from an appliance you downloaded from some website?
Remove the extension pack from your installaion and confirm if you can create a vm from scratch and boot it from a bootable ISO e.g. Manjaro ISO.
EDIT:
This could also point to a VM using EFI boot where the efi image located in the VM folder is from a previous version of VBox.
Such incidents has been seen mainly when upgrading VBox from v6 to v7 - but it only manifest if the VM is configured to use EFI boot.
Thanks a lot for your time. I understand that it’s hard to provide support in such a case
From the beginning I have issues every time I create a new VM. I’m not importing or copying a VM. And I do it with a very basic configuration (Manjaro XFCE iso, default RAM, CPU, VM folder etc…).
uname -a
Linux xxxxxx 6.1.26-1-MANJARO #1 SMP PREEMPT_DYNAMIC Wed Apr 26 22:07:35 UTC 2023 x86_64 GNU/Linux
lsb_release -a
LSB Version: n/a
Distributor ID: ManjaroLinux
Description: Manjaro Linux
Release: 22.1.1
Codename: Talos
vboxmanage --version
7.0.8r156879
I completely removed VirtualBox and Extension Packs and tried again to create a VM but it failed to launch, without writing any log…
I installed Qemu which worked immediately and for now it covers my needs. I may come back to Virtual Box later if I really need it.