@jon I really like Vivaldi, especially the sessions functionality.
There's only one issue: after the first start up of the day, every subsequent time I start Vivaldi it takes something like 30 seconds before I can use it. It becomes totally unresponsive during that time. I've been in contact with support, but so far there has not been a solution. Which is a shame because apart from that it runs great. This is on Windows btw.