I just went over to the Trek site to look at the bike. Great looking bike as expected; but $1,829 for a Sora and Alivio equipped bike? Yikes, inflation is real. I haven't bought an off the shelf bike for over ten years but I remember similar spec'ed touring bikes being in the $800 - $1000 range back in the day. The REI Novara Randonee comes to mind.
Some quirks I noticed: weird seatpost clamp design like a vintage bike. Not a fan. Huge front rack, not sure why they didn't spec a lowrider. Triple crankset in 2022? I went 1X on my latest touring build, come on Trek get with the times.
Sora is the only current shimano road groupset with a triple. The 520 has brifters so Sora is the only option for that sort of gearing.
The rack can be used as lowrider. The top platform is neat for groceries / extra tagalong stuff.
1X just really kinda sucks for road touring (or road riding in general). Even with a 12s the gear spacing is frankly massive if you want any sort of high end paired with decent climbing gearing. With a 3x you get a tighter gearing AND the ability to fine tune with the front chainrings, which lets me pretty much always ride in a comfortable gear.
1x especially sucks when riding with a partner because you're not as free to pick your speed / cadence. I wouldn't want a 10-50 even when riding solo however. When riding my 10-50 bike on the road gear jumps always either drop me to spin out land or push to grind city. Excellent for offroad, but just really horrible on the road.