Yeah I'm thinking about my desktop computer. Also, I find that the autocorrect on my phone is not that good, especially when the first letter is incorrect.

macOS at least will autocorrect stuff by default... I typically turn it off within a few days of a fresh install after getting annoyed by some correction I didn't want.

Yeah that's what I do also. If it got smart enough I guess I'd leave it on, but I have not experienced anything remotely close enough to consider it. Also, it changes stuff without me realizing, and sometimes makes things worse.