One of my favorite websites to read is GamingOnLinux, and recently they had an article about MangoHUD. I compiled it to try today, and I have to say it’s pretty nifty.
MangoHUD lets you view your CPU/GPU stats on the fly, and it also reports what API your game is currently using.
This could come in handy for benchmarking purposes. There are more ways to configure it, including an optional GUI you can install separately called goverlay..
I might look into doing some comparison videos on Windows vs Linux performance as I continue to perfect my Linux Gaming studio. Given that I can record Vulkan (under certain conditions) things are looking on the up and up.