Questions about WMF Kümi Vario glass kettle with temperature setting (413180012)

I am looking for a kettle which has NO screws, silicone parts, plastic parts etc. on the inside, only stainless steel or glass. Does this kettle offer this? Or is the handle also screwed on the inside?

After 2-3 days, I noticed that the kettle constantly (as soon as it is plugged in, even without running) "whistles" at a high frequency, like a cheap "Made-in-China" charger.... It gets even louder during operation... Since I have sensitive hearing, this is unbearable for me... Do you also have this "whistling" or is this a defect (also complained about in r.bonvin's review, also defective?)?

Does this product come with a Swiss plug?

Is this kettle really that big? Or are the sizes not correct?

is it with swiss socket?

To my knowledge, Galaxus does not have a single kettle in its range that is COMPLETELY plastic-free inside. Please include the https://ottonifabbrica.de in your range! I bought it in Italy (not possible online!) and am thrilled. 100% plastic-free inside

Swiss three-pin plug?

Are there any plastic parts on the lid that are chrome-plated?

How can I mute it?

Will this model also be included in the range? https://www.wmf.com/de/wmf-lumero-multi-wasserkocher-1-6l.html

The 21cm height is with the base?

My kettle turns on and off 3 times (heats up a bit each time) before it beeps. Is this normal? (Without heating function) Thank you for a possible answer.

Does your kettle also whistle very loudly in a high-pitched tone during operation? Does everyone in the house wake up when I heat up the water?