For my text editor, KeenWrite[1], 42% of users answered that they'd use AI. Since the majority don't want it, no AI has been added.

[1]: https://keenwrite.com/

Why not just make it opt-in? Seems bad to leave the desires of nearly half your users unaddressed. As long as you're not shoehorning in features or making them unavoidable or the central focus, the only people who'd take issue would be zealot types who want to control other people's choices.