Comment by massaman_yams

Mean Well has some constant current dimmable 24v power supplies with zero flicker. You'd need 2 if you want each strip to be independently controllable. They also can take a PWM signal if you're so inclined, but I bought them because I prefer flicker-free dimming. e.g. https://www.mouser.com/ProductDetail/709-HLG40H-24B