Darth Lefty 

1x provides many benefits for mountain bikes but the Aspect is not taking advantage of most of them

• Front shifting sucks
• Left lever position freed up for dropper lever
• Chain clearance for plus tires
• Longer shaft for main pivot of suspension
• Suspension anti-squat dialed in for the single chain ring

1x also has disadvantages for a bike like this

• The inexpensive versions are very heavy. The cassette weighs about a pound and a half. Not that Scott is trying very hard to save weight on this bike anyhow
• The gear range is not as wide as a triple. You will notice this more on the top end just riding around and more on the bottom end if loaded touring

Ergo - groupset is not a determining factor.

Regarding tubeless - lots of inexpensive bikes are now coming "tubeless ready" which generally means the rims are good to go but the tires are not tubeless tires nor does it have tubeless valve stems. If you want to convert, the time to do it is when the first set wears out, unless you really prefer tubeless or a specific other tire. If the tires do not say tubeless, they might seal up but the sidewalls might weep antifreeze (one of the sealant ingredients) and they might not be as secure on the rim