Uncircumcised vs Circumcised

Sooo my only ex was uncircumcised and I really enjoyed it I kinda prefer natural things in general but I get it's a decision the person doesn't even get to make so I dont make a big deal of it but my new partner is circumcised. I have some questions I didnt wanna embarrass myself by asking him so imma ask yall.

Does it hurt to dry hump him? My ex always said it hurt so we couldn't do it. I'm guessing the extra skin rubbing dry he said its like a rug burn.

Also hand jobs, does it hurt to run with my hand if its dry or do I always need to make sure its wet first? My ex had so much precum all the time like itd go through his clothes and was good lubes for hand jobs but my new partner I've never seen him have any.

And then when giving head are there any sensitive spots? Or does that depend on the guy and not dick skin lol like my ex said the tip is soooooo sensitive to him . I guess this question isn't to bad to ask my partner now 😂

Thanks guys!