Manjaro is becoming a popular distribution for VFIO passthrough users and virtualization in general. Up-to-date packages based on Arch Linux make it a good distro to start with.
Unlike other distros (Ubuntu and Linux Mint come to mind), the Manjaro English language forum still misses a dedicated sub-forum or topic. It could be either at the top-level or inside "Technical Issues and Assistance".
As you know, the German language sub-forum already includes a "Virtualisierung" topic.
I think that increasing the awareness of virtualization will also help users convert from other, non-free operating systems to Linux. There are quite a few people who wish to run Microsoft Windows, MacOS, or just another Linux distro without having to reboot (dual-boot).
This "virtualization" forum would certainly be of interest to gamers (Windows), but also video editors or photographers who need their tools of the trade that aren't available under Linux.
P.S.: I hope to be able to contribute a Manjaro QEMU / VFIO tutorial in the near future.