I am using this mod with vivecraft 1.12.2
as soon as I enter a vehicle, the forced camera view change is messing up the view in VR. Even after leaving the vehicle, it seems not to be possible to revert that state.
Is there a way to deactivate the forced view change?

NVM. I found the setting. Still this mod unfortunately does not support VR very well. Even though that would be awesome.

Why do you expect it to support VR? Nobody designs their mods for VR.