Coming up in my garden right next to some forest (primarily oak mixed with beech, birch, maple) in southwest Sweden. Last year i dug the area out and removed (most) roots. Not much came up but this little sprout. I suppose it could be roots reaching in from the adjacent forest.
I have something very similar in one of my garden beds, but I can't remember what it is! I actually have a similar picture in my plantnet gallery from April 11th last year, so I am quite sure it is a perennial, as I also have it in my garden bed this spring, so if I were you I wouldn't dig it up yet.
Edit:
Is there a chance that it could be a Lily?
The spot used to be a gravel patch overgrown by forest offshoots, mostly maple root sprouts, which I cut down early spring last year, cardboarded and covered. This is on the very edge which is why i suspected a root growth or something creeeping in. Most guesses so far have been rhizomal species, which all appear to have similar asparagus looking sprouts. The lily sprout looks similar too but there’s multiple differences, thus i don’t think this is it. Thanks for guessing!