Honestly unless you want to devote a significant amount of focus to it, it’s not really worth it in my opinion. I did a lot of research on this awhile ago and you’re basically looking at doing 20-30 minutes of pull-up focused work before moving onto your workout.
You’re not like me tho, because you don’t carry a lot of extra weight. So relatively speaking stuff like dips and pull-ups will be much easier for you to improve on than me.
I would include them in your plan as a normal exercise or AMRAP till you get to a certain rep goal. Or you can use a band when they get hard. Or do negatives as an exhaustion technique.
Either way, you’ll probably get fine back development from other exercises without worrying about your pull-up strength. That is unless you’re okay with spending a lot of time on it or sacrificing other aspects of your training in pursuit of a pull-up goal.
They improve really slowly for everyone so you’ll have to be patient at first. Once you get to 20 or so with perfect form you’ll be ready to add weight and from what I’ve seen they go up relatively quickly once you add weight.