nostr:npub1gv8d05f9c55ve9h34rw65v7lvhynvdam5s965m9rajqt9gvk7r8slvuu0q 

I usually only do that for open source software (usually using the f-droid store) or when the APK is otherwise officialy provided by the developers (like with logseq, GitHub) which I don't think I've seen from Vivaldi.

If you have a link to a known virusfree APK download then feel free to provide it, as provided by the CEO is as official as it gets.

med vennlig hilsen!
A huge Vivaldi fan