If you type fast on a Mac, the OS has been eating your Caps Lock presses
Found out recently that macOS ignores any Caps Lock press shorter than about 75 ms. It's deliberate, an anti-accidental-toggle feature. Which is fine, until your natural tap speed is faster than 75 ms, at which point Caps Lock just randomly fails, and you get "iM" and "hELLO" and assume you fumbled it.
Quick test: tap Caps as fast as you physically can, then type. If you're quick enough, it won't have registered at all.
I got annoyed enough to build a little menu bar app that removes the delay permanently. It's called FastKey, and there's a side-by-side tap test on the site if you want to feel the difference: https://fastkey.syrianapps.co.uk
Genuinely curious though: what WPM are you at, and have you noticed Caps misses? My bet is that basically everyone above ~90 WPM has hit this without ever knowing why.
btw, if u r interested, lmk I have 10 free keys for those who are interested!, hope u find it helpful!