this rental thing is nothing new, there are laws here just like there are laws in my old new York city. Apartments not registed as vacation rental should not be rented out or face conséquences.
apartment that are furnished but listed in the fiscal book as unfurnished to pay less taxes will face conséquences, if there is enough inspectors lol!
When you book from a site like homelidays or others you are renting from owners, so buyer beware, you need to book apartment that are rented for what they were intended. I do rent a lot with homelidays and never a problems last rented for two weeks in Rome flawless beauty.
and I with large family have been renting for a long time over 20 years.