Support for asynchronous processing has been implemented. Nodes can choose (or be forced) to be scheduled asynchronously. The graph will not wait for the output of the node to continue processing but it will use the output of the previous cycle (or silence) instead. This adds one cycle of latency but it can avoid having some...
TL:DR Emulators installed via Flatpak won't recognize steam inputs during remote play, However AppImages will work. So if you want to play PCSX2 via Steam Link from your main rig, install the AppImage version....