I use Vivaldi for work-related browsing (one profile per client, thankfully not many clients) and in general it's very good. Vertical tabs, tab tiling + groupin

I use Vivaldi for work-related browsing (one profile per client, thankfully not many clients) and in general it's very good. Vertical tabs, tab tiling + grouping, the built in markdown notepad, that's all great. Their mail implementation is frustrating though. Servers that need OAuth (MS, Google) seem to require re-authentication every couple of days, and I've never managed to achieve outgoing mail with them. The way the mailbox view works like an ordinary browser tab (but the folders are in a sidebar) is pretty annoying too. Normally when I'm doing email I want to refer to something else, often a web page, but if I try to make the mail tab a separate window I just get a "Mail is in Another Window" message. Easier to just use webmail, honestly.