Tap with three fingers does the spotlight quick lookup of what’s under the cursor by default. On a machine from 2012 and an OS from 2018.

I’m not certain but I think if you turn it off, bettertouchtool would let you make it do something (anything!) else you wanted.

Edit: I think I misread your “Apple cant do it” meaning physically, while you probably meant exposing a setting without using (paid) third party apps