How to wire 2 gang smart switch with two neutral wires and wire connecting both COMM
You have it.
But all 3 neutral wires go to the N terminal only if you're allowed to splice onward power like that. Otherwise you'll need to pigtail off the neutral splice and oh look, a spare pigtail just became available!
Also, sanity-check the quality of this switch.  Most multi-switches like this come straight from China and are cheap dangerous junk.  If you bought it mail order, if it came from China, or if it came from Amazon Marketplace... send it back. CE marks are certain to be faked, unless you bought it in a responsible bricks-and-mortar store inside the EU that has a well-managed supply chain.
It's probably OK if it has a UL or ETL (or other NRTL) stamp with a file number.  If it has that, that'll be the biggest mark, not CE.  Big CE = junk.