Different demographics will critique different aspects of different software. There will be an overlap between them, but it will be relatively small versus the people outside of the overlapping demographics who have used both.
E.g. I have tried Vivaldi, but it not being open source means I don't have a horse in the race. I also don't like Chromium-based browsers. Which really just leaves Firefox, which I also don't like, because Mozilla the ever-increasingly out-of-touch company.
FWIW: I hypocritically use Gmail because the UX is pretty much better than the sorry state of native email clients available on Linux. With that said, I also don't use email for anything sensitive, that goes via Matrix. Would I give access to my Gmail to Vivaldi? No.
E.g. I have tried Vivaldi, but it not being open source means I don't have a horse in the race. I also don't like Chromium-based browsers. Which really just leaves Firefox, which I also don't like, because Mozilla the ever-increasingly out-of-touch company.
FWIW: I hypocritically use Gmail because the UX is pretty much better than the sorry state of native email clients available on Linux. With that said, I also don't use email for anything sensitive, that goes via Matrix. Would I give access to my Gmail to Vivaldi? No.