I hope you will excuse my poor english, I never speak or write that language.
We use foundry vtt and roll20 with my gaming group. Since there is no rqg system for foundry and I have no coding skills, I will run a Glorantha campaign with Fate Core. It had me work a bit to adapt the rules to Glorantha and I'm not entirely satisfied yet. And I mostly play rpgs with good vtt integration with my friends. Currently, warhammer and d5 and I'll perhaps join a degenesis campaign with foundry.
It would be great if Chaosium found a way to permit fan communities to implement basic systems on other vtt than roll20 and fantasy grounds.