Don’t mess with anything unless it’s doing something wrong (and even then make sure it’s working right first!) Just looking at the spec, it’s really very nice. Quite racy tyres?
Dropper posts are ace IMO, even for a fairly XC bike like this I reckon they can be worth it if your riding suits it (I’ll be fitting one to my rigid xc bike!).
Other’n that… Contact points (saddle, grips, pedals) to suit you- no right and wrong on any of that. Personally I’d have it in bits and weigh the major components to see if anything’s easily culled, sometimes OEM-spec bars, stems etc can be surprisingly weighty.