I dunno how many rooms with people like Elon you've been in, but people heap praise on people like that; it's free for them to do, and makes the Elon-type feel good about themselves, which materially impacts how much money those praisers have access to.
Once you get into the rank and file engineers, where the folks have a lot less to lose by speaking their mind, the praise has been much harder to come by, and you have incidents like at Twitter, where engineers called out Musk's apparent inability to comprehend Twitter's architecture, resulting in at least one heated exchange during a Twitter spaces chat.
I trust the celebrity engineers less than I trust the nameless engineers, at least when it comes to matters of PR.
Also, not for nothing, but if you haven't seen any negative comments about Elon from "celeb" engineers, you should probably look up the stuff Woz has said about Elon, it's not all positive, at all.