To be real I dont think they penned bars for him (probably hooks if anything). Its not like Jim suddenly was on a top tier level at that time. To be honest hes better now than he was during the byrdgang run.
He's still got writers. Does anyone think he just magically got better in the 2020s?
Jim doesn't create, he takes. He got everything he has from Max B, Stack Bundles, Camron and even Mel Matrix and Chrissy. She was doing reality TV and selling p*ssy to put food on his table for much of the 2010s. Meanwhile, Jim Jones was posing on the gram in his wife's corsets and constantly showing off his chicken legs.
The only reason Jim got semi-semi-relevant in hip hop again is because he was crying like a bitch on Hot 97 before the pandemic and that got memed everywhere.