Jerry Lewis was like Marmite - love or hate. Can't say i ever saw much of his work, what i did was not my sorta thing.
I'm OK with a bit of Norman Wisdom - frankly I could watch The Early Bird until my eyeballs drop out of my head - but JL's style of comedy seemed to put gurning over any gift for comedy that I could ever see ... the same goes for Jim Carrey.
Just how I felt!
He was clever and inventive in ways other than his style of comedy. Iirc he invented something that is still used today in filming,a google search would probably show what it was*. There's always a bit more to a person than the bit we see.
*Video assisthttps://en.wikipedia.org/wiki/Video_assist
(Must go sleep now, start work 10 thank goodness.)