As we all know, VR can be very finicky, unstable and requires a lot of tweaking. It's common to have something in the VR pipeline crash (headset, Oculus link, cable, oculus software, graphic driver, game itself) and it's also very common to want to tweak settings (headset frame rate or resolution, vrperfkit settings...)
I recently picked up MSFS2020 and the fact that you can ctrl-tab to switch in and out of VR, while seemingly a gimmick, fixed or greatly reduced all my VR pains:
- Need to tweak settings? Out of VR, change settings, back in. Feedback loop 10 seconds instead of a full game restart + mission load
- VR crash of any type? In and out and continue as if nothing happened
- Headset runs out of battery? Put it to fast charge for a bit while continuing in 2D
- Dog trips on VR cable and disconnects the headset? No problem!
This isn't even touching on the more obvious reasons:
- People who get sick VR after a while
- Switching to combined arms without needing to restart
- Switching out of VR for specific missions within a flight (to better see ground targets for instance)
All in all, while this seems like a minor nice to have, it's actually an indirect solution to so many problems.