Do high-profile journals edit authors’ figures? I have a paper published in a Angewandte Chemie, “one of the most renowned chemistry journals”, and realized that the figures have been edited from the version I had submitted. They did not tell us about it, but clearly modifications have been made for typographical consistence with their style guide: some symbols have been italicized, axes labels have been changed from, e.g., “Temperature (K)” into “Temperature / K”, etc.

I was surprised, because I know that most journals don’t typically edit figures, so I wonder: is Angewandte Chemie unique in this respect? Do other higher-profile journals, such as Nature or Science, edit figures or provide feedback to authors on graphics?
Yes, high-profile journals do typically edit figures for style and consistency. You will find this information on their web sites, e.g. nature physics.