Questions about Philips Hue White Ambiance Starter Set

We have been using the Hue White Ambiance for a few months now (Bridge, Apple Home App), so far everything is fine. But since a few days one lamp reacts to hangers (?!?). I don't know if it's the noise when they come together, or if it can affect the wifi signal in some way (they are metal hangers)??. I can't really explain it somehow. The reaction is that the lamp, which is always set to warm white, changes to cold light during the "chime" of the coat hangers and flickers a little, but as soon as there is silence, the light remains cold. This can't be right somehow, can it? Has anyone had similar experiences or can explain this somehow?

Which app can be used to implement a timer for the Hue luminaires? In other words, what time of day the lights are switched on and off, if possible separately for each day of the week? It doesn't work with the usual Hue Philips app, which only has timers for 0-30 minutes.

Why is the set with 3 bulbs significantly less attractive in price than the set with 2 bulbs? Is this a different version or why does the set of 2 plus an extra bulb cost almost 30 francs less?

What is the difference between the Hue White Ambiance and the Hue White & Color? With the White & Color you can make colour and also set the white tones... So what are the advantages of the White Ambiance?

Can these lights be controlled with the google home?

Do the lamps always switch on when I switch the light on with the normal light switch? So I disconnect the power and reconnect it?

Are 2 or 3 E27 lamps supplied with this package? According to Philipps the scope of delivery of this starter kit consists of 3 lamps, but here I only see 2...

Is there a BA operating manual for it?