What is your usual strategy in stealth games?

First time through I will try to KO everyone because artificial/forced game length isn't fun. If it's blatantly obvious that it's impossible to do (a la security cameras that send you back to the start when they see you), then I go with stealth. But if it's doable (a la Breath of the Wild), I'll try it over and over until I get frustrated, take a break, and go for it the stealth way.