Although SteamVR Streaming is compatible with Vision Pro, incorporating controllers may prove to be challenging. - Road to VR
SteamVR Streaming Works on Vision Pro, But Adding Controllers Will Be Difficult
The Vision Pro headset from Apple is not designed to play SteamVR games, but a software developer has found a way to modify a streaming app that allows it to run PC VR games like Half-Life: Alyx. However, the lack of motion controllers poses a challenge. The developer has tested the app on the visionOS simulator provided by Apple, and while it works, it is still in the early stages. Apple does not have plans to release VR controllers, so solving this issue may require further hacking. Those interested in trying out the app can follow the developer's instructions but should proceed with caution when installing third-party software. For more details, visit the source at Road to VR.
Source: https://www.roadtovr.com/steamvr-vision-pro-hack-controllers/