Thomas Shey
Legend
I'm not sure what the distance you need to be away from your party is to Stealth effectively. I think in older editions it was something like 90 feet (though I might be thinking of Elves and Halfling sneakiness). You certainly can't stealth as a group without magical support, given heavy armor, though, as usual, this is something magic solves handily with Pass Without Trace. If your DM has enemies use traps often, though, scouting ahead is probably not a good idea unless you can fly or have a climb speed.
Or, honestly, are good at spotting and evading them. Its not a coincidence that traditionally this is a job that's been done by rogues.
Unless your perception is very high, that disadvantage from darkvision is going to lower your passive Perception by 5, meaning you have to actively search for traps and even then, statistically fail more often than succeed, turning your Rogue into a shish-ka-bob.
Now you can build a character to be a better scout. But I'm still thinking an Imp or a Druid wild shaped into a bat are probably your best bets at low levels.
Well, this is partly a consequence of traditional design having its cake and eating it too. There's really no reason as many D&D monsters even have lowlight, let alone darkvision, as do.