My experience with professionally scanned slides was that they picked up too much contrast. I have a very old Minolta 35mm slide and film scanner whose software quit working 15+ years ago. But VueScan supports it very well, much better than the original software. Last year I scanned very many slides from a 2000 trip to Eastern Europe, posting some on line, and putting some in a book I had made. I had it do multiple passes, and then I needed to do a lot of TLC in Photoshop to deal with ravages of time. The green layer had faded faster than the others, leaving a magenta tint, particularly in the shadows. I produced the book in Lightroom Classic and used it to deal with some additional issues. Split toning in the Develop module took care of the remaining magenta cast in neutral areas.
On a 2001 trip to Seattle and Glacier National Park, I shot negative film, and scanning some of those in would be my next project, but now I can’t find what I did with the cut film carrier. I’m mostly sure that I found it when I looked for the slide carrier last year. VueScan, in my limited experience, does really well with compensating for the orange mask of color negatives, customized for different stock.