I wish Vivaldi would correct the code for inputing foreign language symbols. Any time I add an umlaut in German, for instance, it doubles the vowel without accent.
How do you enter or compose such deutsche Umlaute?
Yes, this bug unfortunately is still present. I've cleaned up the existing issue report VB-4362 a bit and added a note that it's still happening with current builds.
@Gwen-Dragon, one way to get umlauts and accented characters on macOS if your current keyboard layout does not support them is to do a long-press of, for instance, "e" which then opens a pop-up menu with "é, è, ê, ..." where you can press a number to select one of those options. The bug is that the initial long-press erroneously inserts a character, so you wind up with "eë" instead of "ë".