I re-wrote my notebook (which originally followed Tae Kim, Genki 1+2 and some other books + classroom lessons). As I was re-writing everything, I would add the grammar point manually on Bunpro. (My though was that this way, I will not have duplicate grammar notes plus Bunpro is my digital SRS )
Now, I follow a specific JLPT grammar book eg Kanzen Master N3. When I find new grammar (that I have not added on Bunpro), I will find that specific grammar point in every book I have and add a sticky note to know that I have done it and copy some explanations and sentences. (If something is not available on Bunpro yet, I would make an Anki card to have an extra digital way of SRS).
From time to time, I would just make notes and add grammar points on Bunpro to fill the levels as not everything is in textbooks.
Over time, daily review count becomes more important. Some weeks, I don’t add anything new. Some weeks I add 50+ grammar points. As long as my daily reviews are bellow 60ish, I am happy to add more stuff…