I'm programming for computers/notebooks (Windows mainly). I would like the simplest solution while keeping the game quality high. Well, if the game had levels which would have fixed size (not square), that seems as a legit argument, doesn't it?

Sure, in my project it's my responsibility to decide. I think I will use this method. However, I'm also interested in opinions of others, that's why I've asked if it is a good idea in general (although I have mentioned "my game").

Good idea, I have already thought about it, but only a little. I will think about it, definitely.