On update 3.5 of Steam OS, there was a call out about being able to customize the overlay by editing the ~/.config/MangoHud/preset.conf.

I’m looking for a simple FPS and battery percentage overlay. Ideally FPS in the top left and battery percent in the top right corner but I’d settle for help with them just next to each other.

Could anyone assist me in drafting the text for this?

Edit:

Thank you to shigutso@lemmy.world for posting the video below with the instructions to wait for the 5 minute mark.

https://www.youtube.com/watch?v=A7oxT6oSun0