How slow are gainZ in a caloric deficit compared to gainZ in a caloric surplus?

Since I began my fitness journey in June, I've been on a caloric deficit the whole time to lose the excess weight. I've been doing both cardio and weight training(specifically body weight training) while on deficit during this period.

My gainZ have been slow but steady.

How much faster will my gainZ be once I reach my goal weight and actually eat at maintenance/surplus?

Has anyone been through this?