Yeah, that's where I am too. I switched to YNAB years ago because it was basically a nicer, more organized budgeting software that I was already doing with spreadsheets at the time. The more I read about nYNAB, the more it appears they are really emphasizing that one month at a time thing, which is just not how we budget and I don't feel we can do it effectively with those constraints. And frankly, if I'm starting from zero and building a brand new budget, I'm not going to force nYNAB to work for us - I'm going to find something else that actually does what we need. nYNAB is too expensive to deal with that headache. If they wanted subscription fees that badly, I'd pay them to keep continued support for YNAB4, but here we are.
There's a lot of polarization between old and new YNAB users, and most of the new YNAB users I've seen basically have a condescending "hurr durr new is different and better and you're obviously just set in your old ways and don't get it (side note, I never thought I'd see the day when I encountered a superiority complex about budgeting software, but thank you internet, I have now seen it all), watch the tutorials, read more, etc."
We're both on Androids and luckily the old app still works, so for now we're chugging along, but I know time is running out. Ugh, this is so irritating.