Would be pretty cool in League for example, both to see what you were doing in this moment, also if your combos are executed correctly, but at the same time you could prove if you really pressed a certain button or if you misclicked. This would not just be a cool feature for the recordings themself, but also for the user to improve themselves
I hope this will be implemented soon.
Yes I agree. OBS currently has several that can be used such as NohBoard (https://github.com/ThoNohT/NohBoard/), etc.
Any type of input overlay (keyboard and controller), even if it just displays in the recording, would be an excellent addition!