(beta feedback) New repeaters being set up in gizmo mode when the gizmo was the active tool I find confusing. The interactive bits of the repeaters like the curve should always appear after adding a repeater the to the scene, no matter what tool was active.
I think it would be ok/better having to reactivate the gizmo.
Yes I can automatically switch off gizmo toggle when adding a primitive.
Similarly I should probably force enable the option when you select the gizmo( and a primitive/repeater is already selected).
And if you only select mesh/primitive/repeater I do nothing.