That’s why I added the any exercise you enjoy bit. When looking at a routine like I wrote out above it is never gonna satisfy everyone. Someone is gonna look and go “how the hell are my arms gonna grow without concentration curls” or “my traps will lag without shrugs”
that bonus day exercise is not gonna make or break your success but it will satisfy whatever need you think you have and keep you sane.
You really have to do this as written, with sensible weights sticking to the rep range and tempo whilst maintaining perfect form without needing a spot. When you can do that then increase the weight by the smallest amount possible and go again.
Remember its the push and pull days that are of most importance, so your week should look something like this.
then Monday of the next week starts with pull.
If you only make it to the gym 3 days in the week then it’s push, pull push or pull, push, pull depending on how it falls but it’s not push, pull, bonus day. Hope that makes sense.