I’d be keen to try something like that out.

I’ve been using pop os for the past few months and I’ve fallen in love with its snapping window manager.

I have a 4K screen plus the laptop (xps 13).

I can have two browsers open, then my ide. And then terminal on the laptop screen.

And I can easily slide the divider between the ide and browsers as necessary based on what requires the most space at the time.

Only issues I’ve run into is being able to move multiple stacked windows to a new location, all at once. I probably just haven’t found the right shortcut.

It’s not exactly what you’re talking about, as the browsers are independent, but I’d be keen to see new browsing options like that.