This is a typical situation, whoever installed this dryer vent didn’t bother to cut it to length and just shoved the whole thing into the corner. It’s best to use the absolute minimum of flex duct. That 180 degree bend is a trap for lint, which eventually clogs the vent and poses a fire hazard. At least it’s metal flex vent, not the horrible plastic style. Keep those vents short and straight and remember to clean them out regularly.
Baltimore Inspection Guy, LLC