Heroes 5 – by Azmadon (Izmail).

Your last screenshot is stretched. It shouldn't be. This reminds me that you have an HD screen, but the game itself is 1024x768.

You can see the resolution from the screenshots themselves. 😅 What's the problem? All the previous screenshots were taken with the game resolution set to 1280x720 (to match my screen).

And in the "correct" resolution of 1280x768 (and since you can't expand the picture vertically anymore, it compresses it on the sides to fit my screen), hence the black bars.

*Overall, I already see that this is a dead-end discussion. If you don't have any suggestions, I'll ask you to close the topic about the "correct screen."
(*For moderators, you can delete part of this "fluff," including my messages from this discussion, if you deem it necessary. Personally, I don't see any value in them.)