I got a laugh out of helping a PhD ML researcher who was having problems with their keyboard. They showed me how they had lowered the repeat delay on their wireless mac keyboard, and now when they typed, it went nuts and stayed stuck on repeat randomly. The reason they lowered the delay was that it was taking too long to delete the long command they had (they wanted to hold down delete to clear everything out).
I was able to show them that there was interference from their USB-C dock which likely caused the key up events to be dropped - and that they could also use the option key to delete entire words at a time.