If you decide to keep the vented dryer, it’s worth noting that humidity is good for energy efficiency in the cold season. Some vented dryers in some parts of the world are even designed with no ducting (the dryer just vents where it sits). Not ideal, but just a bit of perspective. Anyway, this guy explains how and why to vent into the house.
Ideally you would have a humidistat that vents into the house until a threshold is reached, then switches to vent outdoors. If you don’t want a complex ventilation project, it might be wise to simply vent indoors in the cold season and space the loads a day apart, and manually move the ducting to go outdoors in the summer.