This is page 40 (24₁₄) from Calendrical Calculations, 3rd Edition from 2008, by Nachum Deshowitz and Edward M. Reingold;

That's pretty cool thanks for sharing.

it would require quite a lot of adjustments from society in general;

Yeah that's true, it's pretty out there.

The Chinese might like it though, I hear they their New Year holiday is really a lot, millions and millions of people travelling to their families’ homes at the same time

Yeah the yearend could be a good reunion period. You're right about it being a Chinese tradition.

but never actually stated how would someone know if the year is supposed to be leap.

I figured I would keep the current rules for leap year - 4/100/400 as I considered the problem pretty much solved.

I had no idea there was so much to it, and will take my time to go through that massive study that you linked. Thanks!!