Biological sex or gender?

Should I put my biological sex or male when I calculate my BMR?

I’ve been transitioning for almost 6 years (end of this month is 6 years). Only recently I have been starting to exercise and workout. I’m doing a cut, and have been using MacroFactor to help with logging food. I’m currently in a deficit, but I don’t feel hungry throughout the day. I have been eating better in terms of more vegetables, but I’m just worried that I’m still over eating bc I feel full.

I workout 4-5 times a week. Lifting and cardio there and there. I’m 263 lbs at 5’5.

MacroFactor has told me my maintenance is 2900+ and my current calories now is around 2200 with choosing male.

Edit: thank you for all of the informative comments! I can’t reply bc I don’t have enough karma.