6 of one, half-a-dozen of the other
Some dryers can vent to the side, so that may not be a limitation.
I live in Europe(when I am not in the US like now) and we have used ventless dryers for decades. They work, they are efficient, they do not produce any humidity, they take longer, they cost more to buy and run.
Bosch build good stuff, their service in the US sucks the big one. Don't buy from them unless you have written proof in your hot little hands that there is an authorized dealer close to you who also handles service.
I use the condensed water for ironing and - after three loads of wash - have enough to run a silk cycle with the soft water in my washer.