Your instincts are right. 
Never put a smart bulb on a dimmer switch that controls the current to the bulb, whether that switch is smart or not. They will confuse each other and you can burn out the bulb, the switch, or both. 
The bulb needs to always be on full Power and then it will decide for itself how much current to draw.
There are many solutions for providing a wall switch with a smart bulb. The following FAQ should give you some ideas ( this is a clickable link)