It's funny because I'm sure I don't even use like 95% of Quicken. I don't use the budget, or the bill paying, or the charts and reports, or the tax crap, or the retirement planning or all the other various bells and whistles Intuit has decided to bolt on to its vast menu structure over the years. I use it as a checkbook register and as a way to plan the month so I don't overdraw my checking account (which would probably happen monthly if I didn't have Quicken), and to download credit card transactions weekly to watch for fraud. That's it. Surely those two functions are the MVP for any alternative.
There is no way in hell I am going to upload 15 years of financial history to "the cloud". Not a snowball's chance in hell. And yes, I've tried GnuCash. It's just not as good. Clunky UI, double-entry accounting, Yuck.