I feel like my ROM isn’t bad in my ankles and lower body.Although my calves do tend to be a bit tight, I can squat feet together whilst keeping my knees outside the ankles and also achieve a pistol shape without falling backwards etc.
Is there another way to test whether my ankles/lower leg are the problem?

I do find it harder to keep my glutes contracted the lower I get into the squat, but I did think this was normal?

Cheers