Question about Meta Quest 3

Go for it, let me know but you won't regret it. Everyone reacts differently but as you already have one, nausea shouldn't be a topic. That's the only risk.

Find out about the return conditions, then you have a plan B

Plan C Showroom in ZH. I was there the other day. They have one as a demo

I am thrilled. It's my first VR glasses - FS 2024 runs great, the image is sharp, everything is readable in the Cockpit. Half Life Alix is a dream. Car racing games would also be cool, but I regularly get nauseous after a few minutes. The connection with Steam works very well; all games that support VR run smoothly. Since the Quest runs everything via WLAN, it doesn't need a cable, which I find very convenient. You don't necessarily have to sit/stand near the PC. The only thing that bothered me was the strap around my head, so I switched to the BOBOVR, which is much more comfortable.
As there is a large company behind the Meta Quest 3, you can also expect longer support. If you factor the price into the equation, there's nothing better at the moment.
I don't know the PS5 glasses myself, so I can't make a comparison. I would buy the Meta Quest 3 again.