Is there a way to show/sort games by if they support windowed mode natively? (no hacks etc)
I am not talking about checking one game at a time in some site, but if there is a list of GOG games showing which of them do.

That's a shame. Thanks anyway.

Curious... is that something that would influence your purchase decision?

Not going to stop me from buying a game, but could make me buy a game.
Mostly I want this because I now tend to prefer to play in windowed mode so that I have other things on at the same time which I can quickly look at.