Wondering if an overly tight stainless slide can cause damage by galling?
Not on that gun. As That'll Do stated, keep it moderately lubricated with quality
oil/greases and you'll be fine. When someone wants work done as you requested, it's common to need to fire several hundred rounds before it loosens up to a degree. I have nearly 1000 rounds in my Les Baer and it's still a bastard to field strip.