Two tabes in two window mode
Hi, is there/will be possibility to open two pages in same time - one on the left and second on the right ?
Not sure about "at the same time", but could use clone tab for the second instance.
You can tile two tabs beside each other in Vivaldi within a single window. Just multi-select the tabs, right-click on them an choose "tile…" from the context menu. You can tile any number of tabs that way.