ShareDeck

3h 23m
11.8w
27 / 30fps
LCD
Configuration
Graphics preset medium
Screen refresh rate 60fps
Framerate limit 30fps
Average framerate 27fps
Tdp limit 9w
resolution 1280 x 800
System
Proton version 8.0-4
Steamos version 3.5
Note
Antialiasing 2x MSAA. Disable VSYNC. Make sure to limit in-game frames to 30 frames. I usually get a good three hours with these settings. I've tried lowering GPU setting, but the death particles and high 3D object volume will cause your frames to dib into the teens if multiple exploders go off at once. 
Amtyk
Playtime: - / 36h
3h 20m
12.0w
58 / 60fps
LCD
Configuration
Graphics preset ultra
Screen refresh rate 60fps
Framerate limit 60fps
Average framerate 58fps
Tdp limit 7w
resolution 640 x 400
System
Proton version 8.0-4
Steamos version 3.5
Note
In PowerTools: Downclock memory, set 1500 mhz as max.

Ergh-Bough-Pae
Playtime: - / 10h