I was looking into the poem and it didn't really hit me until I read this person's analysis that the poem isn't about a road less travelled. It's about the road you DID take and the road you DIDN'T take. (I know it sounds obvious but hold on)
Both roads are the same and the speaker only THINKS they are taking the "road less travelled." If you apply that to the SKZ universe, then in side effects, boarding vs not boarding the bus still led them to the same destination.
The analysis questions whether it's possible to try the other road once you've already taken one. It kinda leans more towards it not being possible, but maybe in SKZ's universe there's a back door to it again who knows.
Tho based on what I also read, the poem's speaker wants to be able to return to the fork in the road as the same person. Experience/choices alter a person. If they went down another road, they would change. The roads themselves might change too.
I thought of (EX) when I read this. Seeing other stays' theories about the ghosts in the teaser being their past selves/reflecting kind of relates if you look at it like SKZ are looking back at what could've been.
Two moons became one, acc. to Chan's voiceover at least. This bit talks about how the poem combines the two roads to make the reader appear to be on both roads and/or neither. Super cool connection considering the moons combined at the end of levanter.
ALSO really interesting is how a road is manmade. It's not a natural path, it's a road. Even if it did appear to be the one "less travelled" someone still put it there in the first place.
So, how much of what SKZ do is really their own "going their own way?" I've seen stays mention that the sign in one of their teaser pics shows that they're returning to district 9 (?). Maybe they had regrets and wanted to go back to redo things?