Keyboard shortcut to open different panels (effects, lumetri, effects controls etc)

I've got 9 custom workspaces. Any panel I need is in one or more.

Thanks to Jarle Leirpoll, all gave a single digit number as the first part of their name. That way Premiere sees them as the first workspaces and I can change workspaces by keyboard shortcuts.

Like Ann said, you can already do that and map customizable shortcuts in the keyboard shortcuts editor.

Many panels already have shortcuts. (see Window > workspaces)

The rest you need to make yourself.