If it's good enough for the NSA and other paranoid intelligence agencies and military, I think it's good enough for our healthcare orgs.
But I do get your sentiment on a user level. If one of my comp sci professors is using Linux in lecture, they are instantly more credible to me than those who use windows (or MacOS!!) unless I have known them for a while and have found out firsthand.
Pretty happy about my procrastination driving my decision to not put up a bunch of my Star Wars DnD modules and campaign notes.