On Macs (but maybe not on Windows?) you can also assign a keyboard shortcut to show/hide the Left Studio. I use the ` key for that & keep the Macro & Library panel in the Left Studio so I can use those panels only when I need them.
Also, you do not have to have any panels in the Left Studio -- you can float them or combine them in grouped tabs in the Right Studio. You can also double-click on a tab group or floating panel's name to collapse it to just the name(s) header so it occupies almost no screen real estate until you need it. Clicking once on the header expands it again.