SUGGESTION: Option to subdivide big monitors

[lucas75]

I would like to see an option to subdivide a big monitor in smaller ones.

I would like to use a 4K monitor with 100% font scaling to have a massive desktop, but this is unusable in windows, gnome and other desktop environments because the user field of view doesn't reach the whole monitor. By subdividing the monitor, we will have a experience similar to a multi monitor setup.

Something like this:

[oschijns]

Maybe this feature could be an extension but it would be really useful with screen recording apps (OBS, Discord, etc).
Basically those apps offer to either share a single window or the whole screen.
If you want to show a workflow with multiple programs, either you have to show your primary monitor or you have to hookup a secondary monitor for your presentation.

[lucas75]

Yes! But is more than that.

It answer the very same needs than a multi-monitor setup. When the desktop becomes bigger, TopBar, Dash, Menus, Toolbars and SideBars become too far apart from the main content which is uncomfortable. The usual solution is to have multiple physical monitors to force the subdivision of the desktop.

What I am suggesting is the very same thing, but via software, for instance:

[9thyear2]

i suggested the same thing on cosmic randr a while ago:

pop-os/cosmic-randr#12