I think it's fair to assume that moving so many users to a new platform (new to the users) - will take some time and getting used to. Email being one of the biggest pain points.
If anything, such a large migration from software suite to another is most likely very rare. So probably begs the question why would a company do something like this if there isn't obvious benefit of doing this.
Since I haven't used Microsoft products in a long time, I can't tell gsuite is vastly superior, other than very specialized edge cases for excel and word. For most people, it probably is more than good enough and not worth the extra money or (presumably) worse user experience.
If anything, such a large migration from software suite to another is most likely very rare. So probably begs the question why would a company do something like this if there isn't obvious benefit of doing this.
Since I haven't used Microsoft products in a long time, I can't tell gsuite is vastly superior, other than very specialized edge cases for excel and word. For most people, it probably is more than good enough and not worth the extra money or (presumably) worse user experience.