13 Weeks BBB Challenge in Beyond Book: Is Last Set of 5/3/1 a PR Set?

Hi.
I start 13 weeks BBB challenge next cycle.
I am French, so it s not clear for me…
On the last set of 5/3/1, pr set or not pr set?
Thanks.

PR set

In Forever he made it 5 progression, which I prefer personnally

Presuming it is basically template linked below … then no, just meant to do the minimum reps on top set.
Personally I would say its ok to go for PR in first month, maybe second. Third month def do the minimum reps as it gets very tough