The same advice applies to the top of the squat as well. When the weight gets heavy, it’s easy to fall into the habit of taking too much time between reps in the squat. You’ve seen this in the gym - the lifter who takes 10-20 seconds between reps 4 and 5 of their work set.
Don’t be this lifter.
Yes, the top of the squat is the easiest place to support the weight, and thus, we take our breath at this position, but don’t spend any more time than necessary here. You’re still supporting a heavy load, and you want to get done with squatting, not simply put off the next rep. Taking 8 breaths and waiting 20 seconds before you squat the next rep simply makes the next rep harder.