Very interesting to learn the answers to these questions from OP. Indeed, this case is unusual-ish. However, we have seen some of the examples here when people get their 10-year GC upon joint I-751 submission while being in the divorce procedure and not filing the divorce waiver. Then they apply for N400 and get rejected since their 10-year GC was obtained unlawfully. The exact dates here are extremely important. The OP's timeline is somewhat close to that situation (he divorced in 2020, applied for N400 in Nov 2022, now it's 2023, 5-year rule, probably married in late 2017/early 2018)...
Eagerly waiting for the OP answers...