Yes if you hold "shift" for 5 seconds, it will attempt to turn on sticky keys, which makes individual key strokes act like if you were holding them down. Individually pressing ctrl, alt, del with sticky keys is like pressing ctrl+alt+del
Correction because I'm annoying: it's when you press shift 5 times in a row. It would be terrible if just holding it down for 5 seconds activated it, haha
Gee, I wonder why anybody might need an accessibility feature that enables key combinations to be executed one key at a time? I mean, it's not like there's anybody alive on Earth who's missing fingers, or has to use a pointing implement, so I guess we'll never know.
Windows has a lot of features to make computing easier for the profoundly disabled, you should check the Ease of Access Center to see if there's one for you.
It makes it easier for people who struggle to enable it, and the able bodied can learn turn it off as well as the shortcut. It's not for you or about you, you weren't considered at all. Skill issue