I did the bwf rr.
183cm and 80kg.
Diet is good. Sleep is good. To be honest everything is good.
Still after 6 months I could do only 2 chin ups, per session. 3 x week.
I don’t think you need the exact routine. 3x5-12 was the range. Basic beginner exercises like inverted row, assisted dips and so on. People on the subreddit said, that in the videos I do not look like I give everything.
And for defense and a very important possible HINT: Before that I tried weights. Progress here was also a lot slower than what is normal. I showed form videos and progression stats to a forum. They said: “You look like you can lift a lot more.” But i can’t lift more than what I showed. This seems very strange.