@JMaier31 I think at face value, CT's program ticks the frequency box better - as it should, because it's a BB program more than a strength one.
However, when you look a bit more closely you can very easily bump frequency in 5/3/1 without deviating from its core principles in the slightest.
For example, you want to hit your squat more than once a week? Easy! Hit a squat variation after deadlifting. Want to deadlift more often? Do a DL variation after squatting. Same applies for bench and press. No reason not to use a bench variation for assistance after pressing and vice versa.
I run 5/3/1 pretty much like this:
Press 5/3/1 + FSL
DL 5/3/1 or 3/5/1
Bench press 5/3/1 + FSL
Squat 5/3/1 + FSL
I add calves in between upper body FSL sets, pull aparts between upper body warm-ups and pull-ups/fatman pull-ups between lower body warm-ups.
If you wanted it to be really simple, set a nice low TM and do opposite lift BBB four days a week. You'd hit everything twice, do lats/upper and middle back twice a week and abs/lower back twice a week.
I also understand that Jim is doing some cool stuff with full body thrice a week these days, which would absolutely provide frequency.