Lisbon is where the issue is the worst of all. When I had a job, I had to choose the office where I would work. I deliberately avoided the Lisbon office because I knew there was no realistic chance I would find a place to live there with my family with Portuguese wages.
Not OP, and not living in Lisbon, but yes, it did strike me as odd to see so many buildings boarded-up when I was visiting there 2 years ago. Even in what looked like "prime" locations.