I didn't know you could pull a glute, either! I love those Unleash upper body workouts, there is quite a lot more cardio involved than with Intent.
I'm finding that I'm regressing - I'll be 60 this year and according to my smart scales I'm gaining fat and not muscle now, and muscle quality is lower. I eat plenty of protein and haven't changed anything in my workouts, it's really annoying. Although on another FB group - Lyle McDondald's who is the GOAT of everything hypertrophy focussed - said at 60 you should be happy just to maintain - you're not going to gain anymore muscle at that age 😥