I don't count calories. I went off Ozempic (now Mounjaro) and I gain weight at about 0.5-1kg a month.
As I am resistance (gym) training, significant % of that ends up being muscle mass rather than fat.
So I end up taking Mounjaro for about 1-2 months every 3-4 months, approximately 33% of the time being "on".
Funnily, I end up with bulk/cut periods without doing them explicitly. This ends up working well for growing muscles.
Notice all people in the story are women. I guess pairing GLP-likes with bodybuilding works quite well for men. As times goes on, I end up needing mounjaro less due to my increased muscle mass.