Streaming and Recording Tips
If you intend to record the screen mirror, note that the game’s window by default uses a resolution of 720p. To get higher quality video, you may want to increase that resolution.
You can do so by adding e.g. -w 1920 -h 1080 to the game’s launch options in Steam.
Furthermore, you might want to disable the game mirroring the HUD and menu to the window, as that will cause it to display double in your recording.
To do so, open the console in-game via the button in the options menu, then type hlvr_hud_on_mirror -1. To revert this change, type hlvr_hud_on_mirror 1.