Aren’t the effects of rent control well-studied and well-understood phenomena at this point? Won’t this cause the rental market to become effectively deadlocked

Aren’t the effects of rent control well-studied and well-understood phenomena at this point? Won’t this cause the rental market to become effectively deadlocked? i.e. people staying put for very long amounts of time due to not wanting to lose their low rents, landlords refusing to maintain their properties due to lack of incentives, inefficient allocation of rental properties (one person living in a 2 bedroom merely because the rent is low), and so on? This seems like a bad solution to a problem (housing shortage @ current market prices) with an obvious solution (allow more housing to be built). It’s almost like the politicians pushing for this policy don’t value the input of experts and the application of research, but instead are only interested in solutions that sound good at the most superficial level. Golly!