Always a solid wooden door for me, however I did it for experiencing, I have made someone a 22mm copper pipe length from the door handle to the floor and a T-piece which slide over the door handle to stop the handle operating, have tried it myself to open the door from outside with the door unlock and I couldn't open it, sometime a simple idea can be effective! Have fitted many upvc doors and locks, I can break into them quietly without making too much noise and that's not bumping the locks
Not sure about the latest upvc doors or any improvement