Kane could have one leg and he would find a way onto that pitch. Against Liverpool and Salah? Yeah, there's no chance he won't play at least some of it.
I understand it might be a bad thing to rush him back, but at some point, this might be his one shot to see a CL final match. If he's your talisman, you let him do what he's able to do and live with the consequences down the road.
There's really only a few things in football that are the equivalent of playing in one of these.
It's partially why Salah and the club were so rocked in seeing him go off early in the finals last year. Your whole football career you wait for that match, and to not play in most of it, or miss it entirely, it could shatter top end players.