Rather than go through all the years I've used QFW (back to 2009 or so, after Microsoft took the Money and ran), I'll try to get to the root of what brings me here to ask my first, but very likely not my last, question.
As a heavy user of QFW 2017 (and previous versions) for years, I know how it works, what the workflow is like, what the quirks are and how to stay productive despite the quirks.
But QFM 2020 is not QFW 2017. And that's OK. Instead of complaining "Why doesn't QFM work like QFW 2017" I'm really trying instead to learn how to be productive with QFM. So my question is: Is there a book, a treatise, a primer, a sticky Community post, a YT video, produced by someone who successfully learned to be productive with QFM 2019/2020 after years of depending on QFW?
Something like, "I know it's your current practice to go to the bottom of the Account Register and accept downloaded/cleared transactions into the Register: well here's how the QFM 2020 workflow handles this task" or "QFW 2017 has the Password Vault, but QFM doesn't have this concept and instead requires you to use Mac Keychain Access, and you'll therefore need to consider the following", etc, or "Here's why "Pay Now" is not available/is greyed-out in a Bills & Income Reminder in QFM 2020".
And you guessed it...I can't seem to wrap my head around those 3 initial differences.

If anyone would be willing to provide some guidance, has "been there, done that", I'd be very interested in that input. I'd appreciate especially hearing from anyone who had similar challenges moving to QFM 2020, and can offer their voice of experience.
Many thanks in advance. Apologies for the long post.