Sony's latest and greatest headset is technically compatible with Steam VR, but it needs a little extra hardware in between. Hardware that doesn't actually exist.
PlayStation VR2: 13 new titles and launch lineup revealed – PlayStation.Blog
Here's every game announced for the PlayStation VR2
PlayStation VR 2 Getting Room-Scanning, Live-Streaming Modes
PSVR 2 Review: The Best VR Gaming Experience With Strings Attached - CNET
REEYEAR PSVR2 Earbuds Replacement, 3D Audio Crystal Sound Noise Cancellation Gaming Headsets fits for Playstation VR 2,Black : Video Games
PlayStation VR cinema mode works with PC, Xbox One and Wii U
Head Strap for Playstation VR2, PSVR 2 Strap Accessories Compatible with PS5 VR2 -Adjustable, Enhanced Comfort, Reduce Head Pressure : Video Games
Turns out you can connect a PS VR2 to a PC, it's just not very good
Sony PlayStation VR2 vs. Valve Index: The Best Tethered VR Headset