I'm currently playing a gnomish Battlesmith Artificer. Took the criminal (actually Spy) background because it fit neatly into his backstory, and got him Stealth. Took the Observant feat... and now he has a pretty ludicrous passive Investigation score.
So, "sneak ahead, notice and disarm traps, open doors and chests and vaults" is very much in his wheelhouse.
He's missing the the sneak attack, but would have to actually multiclass to get that, and I'm not sure that's worth loss of spell progression.