It sure would have been nice if, in our current era of vibe-coded OSes, we had cross-browser support for the show*Picker family of methods
They could've serve as a OS-neutral escape hatch for writing local-first document-oriented apps while worrying less about the underlying OS
But, y'know, we can't have nice things.
(Trusting Firefox and Apple rhetoric on these proposals turns out to have been a bit dumb in hindsight 🤷♂️ )