About 34-35 weeks, but some people only turn by the final weeks.

I have a friend who's baby turned around 30 but after that pop back up, so she ended up with c-section.

Advise I got from antenatal talk is to place music at your leg end. According to the doctor, baby will search for the music source and turn his head towards the direction. Easier to do at night on the bed.

My own gynae recommended some sort of cat pose. On your knees, place your elbow on the yoga mat and put your forehead on the floor/mat. At first I don't understand, so after searching youtube it's like this:

https://www.youtube.com/watch?v=5hXFRrdr0CQ

I did both and my baby turned last week (week 34).

35 36 weeks around there.

but even if the fetus doesn't turn, obstetrician can perform external cephalic version to force the turning of  the fetus provided there isn't any contraindication to perform it and there is consent from the patient.

so just relax and enjoy. no need to worry.

Depends on the size of your baby, diameter+thickness of the sack, and the Amount of your amniotic fluid. For big size baby+normal volume of AF+normal sack, should be turn around 24-26weeks. Medium baby+normal AF+normal sack, mostly at 30-32 weeks, small baby + normal AF+normal sack up to 36 weeks. Your OB will opt for ECV if everything is normal and your baby still in breech position And Caesarean as The back up plan.

Baby position don’t matter.
Lying sideways is better because easier for the pregnant lady to breathe and less compression of the umbilical artery leading to better blood flow for baby.

my wife 28 weeks already in correct postition