Putting in another recommendation for Notesnook.

I use Zen as my standard browser. But vivaldi is my chromium based browser of choice when I need one. I wish they were open source. But for a non FOSS product I think they do things pretty well. I personally don’t mind those revenue streams they use as they aren’t that intrusive for me. But again, I only use Vivaldi for installing PWAs (as that doesn’t work well in Zen) and for the rare website I need but doesn’t play well with Firefox.