Yes most full oil paints were banned. You can still get some alkyd based paints such Tremclad, Rustoleum, zinsser's cover stain, and if you have a commercial license Industrial Plastics and Paints sell some heavy duty oil coatings as well.
I just refinished a bunch of cedar woodwork around my house with an awesome water based oil stain from Broda
Stains, Finishes, Paints + More | CBR Products
Pricey at about $80 a gallon, but awesome stuff. And manufactured in Vancouver
Those latex deck coatings/stains are garbage, when I first bought my house I applied the BEHR shit to my deck (2 coats) and it was peeling within 2 years. Garbage.