Feels a bit pointless to explain basics but I'll bite for the others - I dont know which country is like that, definitely not Switzerland, not Germany, France, Czech republic nor Slovakia (listing personal multiyear experiences).

Neither of them has any (significant) rent control, definitely abolute 0 for young and able, and people have rental agreements which run easily decade(s).

Ie in France its the opposite - owners are properly scared of long term rentals, since rentees can trivially just stop paying and it will take you 6+ month of courts to have an attempt on evicion. They can trash the place and no real recourse. Not empty threat neither, everybody knows such a case personally. Thus everybody -> airbnbs. Blame the system if you grok the situation, french one is one of the worst in the west.