How to make it like these screenshot?
It's photoshop? or install some extension?
Tiling, I think. Stack 4 tabs on top of each other on the tab bar, then right-click on the stack and choose Tile tab stack from the menu.
In addition to the way sgunhouse described you can hold down "CTRL" and select all tabs that you would like to use for tiling.
Now you can click in the statusbar on the Tabtiling icon to select if tabs should be tiled vertical or horizontal, etc.
Or if you're more a keyboard user like myself you can use shortcuts to do the tiling and the un-tiling
"Ctrl + F9" = Tile vertically
"Ctrl + F8" = Tile horizontally
"Ctrl + F7" = Tile to Grid
"Ctrl +F6" = Untile selected tabs
The good think is you don't need to memorise those shortcuts just press "Ctrl +F1" to open the Keyboard Cheat Sheet and type tile to get a list of all shortcuts available.
@zaibon Thank you so much!
@zaibon If you assign all of them to the F6 key they will be easier to remember.
@pesala Good point never thought about it that way around. Although until now I stick to standard key bindings as I use vivaldi at least on four different machines and I don't trust myself enough to remember and set all key bindings in every vivaldi instance the same way - so until sync copies the shortcuts also I'll stick to the standard layout for not breaking my workflow ^^
@yjs14 You're welcome