Remote Play controls don't always get passed to the host

[CKWarner]

• Steam client version (build number or date):
• Distribution (e.g. Ubuntu): Kubuntu 20.04
• Opted into Steam client beta?: Yes
• Have you checked for system updates?: Yes

When using a Linux host and Steam Deck client, controls are not always passed from client to host regardless of which control scheme is used on the client. I've not yet established exactly what determines which games will work and which ones won't.

Games that do work are Death Stranding, Control, and Contraption Maker. Games that don't work are No Man's Sky, Candle, and Mountain.