The AI answer gave the Settings path to turn it on.
Some device has a local key (usually on the top row among the function keys) that you can use to turn on and off, if you find it, see if it works. If not, sometimes you might have to hold down Fn key at the same time.
Some models might have a button right above the touchpad you can turn on and off.
These local keys would depend on models, as they may not be always the same.