In the Steam Link app, you have the option to select “Start Streaming” without picking a specific game. This will stream the screen as it is without binding to a specific window.
The main caveats here are as follows:
Requires a working pipewire & desktop portal configuration
Depending on desktop portal & settings, you may need to manually click through the screensharing request modal on your desktop at the start of each connection
The Steam client must be installed and running on your Linux machine in order to receive connections
Honest answer? Steam RemotePlay
But this is only for games, isn’t it?
In the Steam Link app, you have the option to select “Start Streaming” without picking a specific game. This will stream the screen as it is without binding to a specific window.
The main caveats here are as follows: