My suggestions derive from being a longtime GNOME user.
In terms of navigation across multiple workspaces and open windows per workspace it comes in handy to be able to cycle through workspaces with super+mouse scroll. Like this, there is no need to move the cursor to top left corner of the screen(where the workspace applet resides). This should also work when active or any window on workspace is in fullscreen mode, otherwise it will break the feature.
It's easy to lose orientation and overview over open windows per workspace, if not in overview mode. With super+shif +mouse scroll, it's easy to see which other windows are also on current workspace (while cycling through workspaces).
To be able to cycle through open windows of current workspace is useful in workspaces focused/orientated workflow anyways.
Analog to this I also propse cycling workspaces via mouse scroll if cursor is over [date/clock] in middle of top panel (again saves moving cursor all the way to top left corner) and cycling windows of current workspace with pressing shift while scrolling while mouse cursor is over [date/clock].
Note that all my suggestions are made with mainly stacking windows in mind.
My suggestions derive from being a longtime GNOME user. In terms of navigation across multiple workspaces and open windows per workspace it comes in handy to be able to cycle through workspaces with super+mouse scroll. Like this, there is no need to move the cursor to top left corner of the screen(where the workspace applet resides). This should also work when active or any window on workspace is in fullscreen mode, otherwise it will break the feature. It's easy to lose orientation and overview over open windows per workspace, if not in overview mode. With super+shif +mouse scroll, it's easy to see which other windows are also on current workspace (while cycling through workspaces). To be able to cycle through open windows of current workspace is useful in workspaces focused/orientated workflow anyways.
Analog to this I also propse cycling workspaces via mouse scroll if cursor is over [date/clock] in middle of top panel (again saves moving cursor all the way to top left corner) and cycling windows of current workspace with pressing shift while scrolling while mouse cursor is over [date/clock].
Note that all my suggestions are made with mainly stacking windows in mind.