Road Cycling“It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway
This bike comes with a 2x 48/31 with 11-34, hopefully that’s adequate but it looks like the derailleur will handle a 40 tooth cog if needed. Obviously the gearing is a bit of a compromise for the road with bigger jumps and lower top end.
That’s a good starting point for gearing. It might be all you need, but good that the derailleur has more capacity.