I only see a bunch of references to swift (very much not portable), but I did skip the Q/A style section. I see he mentions portability, but still no mention of actual portable frameworks. The word "macOS, "apple" or "swift" appears ~7 times each. No mention to any other GUI framework other than ...a link to the bloomberg terminal website? I would find the title less misleading if it was "I like swift".

Let say someone, as windows or linux user, clicks on this article claiming he/she should stop "doing TUIs", what take away message should he get from it? "GUIs just looks nice but sucks you have no swiftui"? Personally, I was expecting a developer's angle on GUI programming.