No, they are not. Manufacturer's advice: Clean with soap and water, you can also use common cleaning products for cleaning floors. Do not use acidic or chlorinated products.

Yes

Since the carpet is in stock, this should not be a problem. Provided the other conditions are met: https://www.galaxus.ch/de/Wiki/560

The format is 70x180cm.

It is a carpet, you can optionally fix it to the floor with double-sided tape. It can be cleaned with a cloth and a little soap. This way, there should be no loss of colour.