Yes, this should work without any problems, because the led strip comes on directly when it gets power. But if you have a Hue Bridge, you can also use a motion detector from the Hue series.
Hello Sojer
Yes - that works. I have also implemented it this way. Simply adjusting the colours via the app only works when it is switched on, of course. Switching it on/off twice in quick succession resets it to the default setting.