EDIT: I’ve attached a rough map of the situation. The laundry room is the little room in the middle. The red dot is where the dryer vents into the garage....
My parents have a similar setup. They eventually switched to an interior venting system (link is an example only, not necessarily a recommendation).
It condenses the humid air, so you have to empty the reservoir and clean the lint filter after every use, but it’s a lot cheaper than a remodel just to add some ducts to the outside.
xkcd #2936: Exponential Growth ( imgs.xkcd.com )
https://xkcd.com/2936...
Ideas for electric clothes dryer that vents into attached garage
EDIT: I’ve attached a rough map of the situation. The laundry room is the little room in the middle. The red dot is where the dryer vents into the garage....