I apologize - why don’t the city authorities build student dormitories and rent them out to students, solving 2 problems - settling students + getting an additional income channel?! Or why don't private investors do this? This is a “treasure2” for investment - there is a constant, growing, unmet demand! Plus, a bunch of services will be added there - from laundry to cafes/pizzerias and pharmacies, for students. Such projects provide good development where there were problems... It’s not right to take the problem , isolate yourself in it, and just complain... Many problems can actually be turned into positive events!
There already are a few student dormitories, but unfortunately, they're not enough to accommodate everyone; secondly, they have strict economic requirements to enter, although I believe they're usually full; and lastly, I've read rumors during Covid-19 regarding their unpleasant condition—not all of them, of course, but you get my point. The article I read was from 2021, and I'm hoping the situation has improved. Another new block of apartments was recently opened, but as I've mentioned earlier, it doesn't solve the issue; they need to facilitate more students, and the current accommodation is not enough.
In a digital world we live in, you expect technologies like Airbnb to be a must have and this is good for tourists if it works and a plus for home owners as they make more money on it, besides we have very little business ventures left for people to try out which is why many are venturing into it for easy profits.
Airbnbs' certainly provide options that either cannot be found in hotels or may ultimately be cheaper, and price is one of the most important factors. Definitely, they also play a vital role in the tourism industry; however, I believe that it has gone out of hand.
The last thing you want is regulation, let the free market economy do it's thing , besides you mentioned that you live in a tourist city which is a benefit for the locals that own property but a disadvantage for locals looking for nice affordable housing...
If I were in your shoes, I would be thinking of moving to a different city if the option is available as will be cost cutting in both accomodation and all other necessities(school, education, health, utilities etc)
I'm not against regulation; in Spain, in Barcelona, if I remember correctly, they banned short-term rentals in the town center. I understand that short-term rentals are both a solution and a problem. Homeowners found a way to boost their income, while renters, on the other hand, are forced to pay extravagant amounts in rent to cover their needs. However, there needs to be some balance between the two.