Since I am stretching to increase range of motion and that fatigues muscles, connective tissue and the CNS, the stretching is not part of my gym time.
I lift first thing in the morning (usually done with squats by 6 AM) and stretch before bed.
For me I just sit on the floor, back braced against a wall and get my legs as straight as possible in front of me--eventually with getting the toes pointed straight up. (I am very tight.) That seems to be enough, at least for now.
Probably as I add weight, I will discover that I need more.
@songbird1028 It looks like your wrist is under the bar. Does it cause you pain in that area? If so you may want to google rips grip for squatting. Otherwise, everything looked great.