Any way to resize an object while constraining proportions using the keyboard?

Cmd+arrow resizes objects on one axis at a time. Is there no way to proportionally resize an object with only the keyboard? It’s really cumbersome to need an object bigger while it’s already selected and not be able to resize via the keyboard. There was a Spectrum post about this years ago, I’m shocked it hasn’t been implemented yet if so. Seems like all you need is one extra modifier key pressed while resizing?