Using your Cloud PC with VR, Parsec or Steam Remote Play should work fine if you are using the service via Pay As You Go as it has no usage limits.
If you are using a subscription, however, the stream will likely end after 20 minutes, as our platform will think you are idle if you are not using our streaming client. This includes streaming clients such as "VR Virtual Desktop" and "SteamVR".
You can get a 30% discount on Pay As You Go when using it with an active subscription (Access Pass).
In addition to the idle timeout for subscription (access pass) customers, popular third-party streaming & VR apps may be blocked when starting your Cloud PC in subscription (access pass) mode. This is to prevent those trying to use 3rd party streamers with an access pass. Such behavior typically leads to customers trying to use mouse jigglers and other tools to trick our idle timeout into thinking they are active so that they can use a Cloud PC started in Access Pass mode with Parsec or VR. Typically, those customers then leave their Cloud PC running 24/7, costing us thousands of dollars in AWS fees which is why we have the idle timeout in the first place.
(Parsec & VR mentioned above on Pay As You Go)
Learn more about usage limits here: https://stimsocial.zendesk.com/hc/en-us/articles/19397077862803-What-are-the-usage-limits-with-the-Stim-Cloud-PC