I might be able to answer as I got cut in my early 20s with no underlying medical conditions and have had plenty of sex both before and after. Using
@Motion-of-the-Ocean ’s words above it was very much an exercise in vanity as I really wanted that circumcised look, so I had a fairly radical circumcision, close to a low & tight style with frenulum also removed.
To get to the point, I really did not notice any significant change in sexual pleasure once things had healed up. There are slight variations, but I wouldn’t class it as either better or worse. The glans is a bit less sensitive (in a good way if I’m honest), and the area where my frenulum used to be feels very nice and is a better orgasm trigger than before. Sex requires a bit more lube or vaginal lubrication though and dry sex or handjobs are pleasurable, but not as good (unless you use a condom, in which case things feel very similar). However, overall things are the same. There are vastly more important aspects that determine the way sex feels and the foreskin wasn’t one for me or my girlfriend back then.
There are some ancillary “benefits” unrelated to the sexual act itself that may help, like feeling cleaner down there (no random lint under the foreskin as she pulls it back during spontaneous sex), condoms being marginally easier to put on, or ending up having sex with that small percentage of women that have an opinion on cut vs uncut and who invariably prefer the former (the converse of this though is that Eastern European lady who had never seen cut before and required some explaining that pulling at the shaft skin won’t get it over the head and doesn’t feel great).
Your mileage will inevitably vary. Not all penises are the same and not all circumcisions are the same. To the guy with phimosis, cut sex is far better. To the one with a botched circumcision, uncut was better.