Still waiting for Vivaldi to do as promised - i.e. something other than a Chrome-clone with a couple of extra options - let alone the "new" (post-version-12) Opera.
Poor sods have bought a Chrome rendering window with a different UI, and a handful of aging and obsolete services.
(P.S. Vivaldi - where's the damn promised in-built email client, the thing that distinguishes you from your competitors?)