Flash player help page should be updated
The page says to go to vivaldi://plugins and see if flash is installed, but the page is not more present in vivaldi 1.8.
This could confuse new users, as it shows also NPAPI support which is deprecated.
I reported this to our Community Manager Gaëlle.
Have a look! https://help.vivaldi.com/article/install-flash-player-for-vivaldi/
@Gwen-Dragon Already seen
Now is better