Question about DJI Mavic Air 2 Fly More Combo

Yes, that is correct.
The current Swiss drone regulations require an insurance coverage of at least 1 million Swiss francs to operate drones weighting more than 500g.
Under the following link the most important regulations are summarized (official englisch page):
https://www.bazl.admin.ch/bazl...

A corresponding insurance is normally not expensive and if you already have a "personal liability insurance", it might already offer the required coverage for drones (and other model aircrafts and similar elements).
It is worth checking with you current insurance to see if you are already covered and if so, have your insurance issue you a corresponding confirmation, as the regulation requires you to have that confirmation on you when you fly in an outside area.