Blast! Unfortunately, I’m an idiot.
When choosing between App Lab key and Steam, I didn’t realise one was for Quest-only (which I already had via SideQuest and itch.io) and one was for the PCVR version. I would have been happy to keep updating Quest via SideQuest so the Steam key to play via Oculus link would have been great (it’s seated, so no problem with the cable...)
I love the game on Quest however! Incredible job. Sure, Quest allows for freedom-of-movement but a good seated experience is nothing to be sneezed at.
Ah well, for just €12, I might just buy a second, PCVR copy from the Steam store to enjoy the better textures.