Vented tumble dryers are fine if one has a wall opening for the vent, or can make one. Many parts of Europe, such as Paris for instance forbid cutting holes into outside walls hence condenser dryers and those "portable" air conditioners that have hoses one sticks out of window, or worse collects water in a drip pan.
If you own your own home,or modern buildings things may be different, but you simply cannot go around making holes in 100, or even 200 year old buildings, well at least not in Paris.