Yeah, +P+ can be a real fiasco in 38Spl but it's fine in a 357. In fact, that's the ONLY gun it should be shot in.
+P+ in .38Spl was all too often part of an agreement of fraud between the major ammo houses and police departments. The stuff was actually low-end .357, sometimes not even "low end". The goal was to allow police to lie on the witness stand and say "oh no, we don't use any of those eeevil MAGNUMS like Dirty Harry!"
I was told of one case where a cop wanted to qualify with his .38Spl S&W snubby revolver for off-duty use. The rangemaster made him qualify with "department issue" 38+P+ with a smirk, knowing exactly what would happen. The gun didn't blow up, but it was destroyed in just a few cylinders. Even post-retirement he was still pissed off over that one.
Federal did play that game, along with Winchester and others. The main thing that ended the scam was the rise of the auto in US policing.
But again: you can shoot this stuff in 357 revolvers no problem.