This is why you need rent control. 100% of this price hike is going into landlord's pockets, it's not a result of inflation.
How did that work for Berlin? Try moving there today and tell me how affordable it is for newcomers. Rent control is basically subsidizing existing grandfathered tenants by fleecing those new wishing to move in, without fixing the underlying housing shortage in any way. The solution is always, always, having (building) more supply than the demand, yet nobody seems to get it.
What if there’s a feedback loop between building more supply and increased (induced) demand?