Question about DJI Mini 2 Fly More Combo

I am new to the drone scene and wanted to get started with a DJI Mini 2. Now I have read up on the SWISS legislation. The more I read about it, the more confused I am. My "SWISS" legal uncertainties regarding the DJI Mini 2: Do I have to register the drone? (Weight under 250g) 2. do I have to register as a pilot? 3. does the Mini 2 require liability insurance? (Is the insurance compulsory)