Its a long post, but the short answer to your question is ‘yes but depends’.
In regards to your original requirements.
All of this, other than the RBGW is possible using the Fibaro switch/dimmer the dimmer2 can ever carry a second scene upon it so that you. can use another button to turn on/off sonos.
The interesting part is the RGB lights, there are a couple of things to know
- Smart globes and power surges do not mix well. (ie turn on/off)
- Smart globes and dimmers do no mix. (first hand experience)
- While you were right about smart gloes returning to 100% when turned back on - this will be fixed in the next round of firmware by phillips. ie. In the very near future phillips hue will retain its state (color/dim) when turned on/off.
What was my solution to similar problems you faced?
Fibaro Dimmers on all wall switches, and then add some lamps for Hue/color.
Smart globes are cool, they really are, but smart switches/dimmers are by far more important- for all the reasons you have identified, but don’t under-estimate Btwvince message :
The sweetest thing is I can use it in combination with Homey and my girlfriend can just use everything with the wall switch like in the “old days”