This is the classic conundrum .. should a level change turn the device on if it was off. Same with lighting.
I prefer it doesn’t as then you can preset the brightness that a bulb will come on at when next turned on. Eg set bathroom lights to 50% after midnight till waking time. It also retains last brightness when turned off. The on off controls power and the level just sets the brightness or speed for when power is next applied. This means you can have a device off at 50% or on at 0%. An automation system can manage this giving you the preset feature but it’s not as basically intuitive.
