The process of returning to sports and physical activities after surgery should be slow and controlled. The sports schedule according to the healing period is as follows:
Light-paced walking is allowed. However, activities with high pulse rates (such as running, heavy cardio) must definitely be avoided in this period.
You can increase your exercise pace and raise your pulse. However, sudden movements that increase head/nasal pressure, such as holding your breath while lifting weights and straining (valsalva maneuver) are not appropriate in this period.
You can freely exercise at any pace you want (at home or in the gym).
Although you can do your desired sport after the 2nd month, you must stay completely away from any competitive sports that may apply physical force to your nose (boxing, karate, wrestling, close-contact basketball, football, etc.) and risk of trauma until the 6th month.