Honestly, because RaD was brought up today, let's go out on a limb here
I think they are quite in a weird situation right now.
They got quite big (~ 150 devs) and are a highly ambitious studio that was working on an AAA console game and Lone Echo II when Facebook acquired them.
Facebook has since discontinued Oculus Rift, and is 100% focused on the Quest 2 now.
I could see if there is some dissatisfaction within RaD because they wanted to do big things over there and might got a reality check after the acquistion. Like I said, they are quite an ambitious team and that probably wouldn't sit well with them.
What is also weird is that the studio has currently 0 open vacancies neither on their hompage nor on linkedin. I probably haven't seen that for a studio that big like ever. Other facebook studios like Beat Games do have open positions.
There is also really little activity from RaD's social media channels these days. Even devs over their don't tweet a lot anymore, even though Lone Echo II is releasing in a few days.
So, basically what I'm kinda predicting/hoping/wishing is that SIE might be in talks to acquire RaD. That's 100% speculation but I could see Facebook probably not wanting such a big studio, when smaller studios like Beat Games deliver bigger hits for Quest. Sony needs VR studios and will have bigger, more ambitious projects for PSVR2 and RaD would be able to get back into AAA console development. Win-Win-Win for everyone.