Had the problem when pairing my controllers with my PC that the PS5 kept turning on. According to this it might just have been me being clumsy. Looks like once they’re paired with the PC they should wake on PS button and connect to the PC.

Raises the question: is there an easy way to switch them between devices.

Reasonable-looking prescription inserts for the PSVR2. While I have inserts for my Quest 2 (and they're amazing), I've not used this company before. The plus side is they're based in the UK.

Going to give them a try and see what they're like.