So a few more questions about the due tag - what exactly are the acceptable date formats? Can I due(November) for example?
It can recognize a wide variety of formats, I don’t think it supports just the month, but it does #due(1 November) for example. It’s easy to see when it recognizes the date as the date will be converted into an absolute date under those conditions.
And searching for due tags, is it an exact match or can I search due(2020) to find everything due next year? How do I find everything due in November this year?
No, similar as above it works in that it gets converted (if recognized) to an absolute date. After that the query will find everything that is due at that stage (i.e. any due date identical or earlier than the one you give it). I.e. if you say #due(tomorrow) it will include all things due tomorrow, which includes everything that was due for today.