Every time the game is loaded, its resolution is reset to the lowest possible one. It is so low, you cannot even read what is going on. Once you realize what's happening, you'll have trouble changing the setting because the name of each setting is extremely blurry.
This is a German game, yet German is missing from the language list. If the list is correct, and I assume it is, this is absurd. I know you can download a German patch somewhere but I don't want to download shady software from some unknown website. I want the original language to be included in the first place and I won't buy it as long as this is not the case.
The separate applications from previous releases do not exist anymore. This release is completely dependent on some central management/starter application by GOG. This means you have no chance of moving the original DOSBox editions on a system of your choice any more. The mentioned minimum system requirement of Windows 10 is absolute. That also means even the Extended editions, natively running on Windows, cannot be run on versions of Windows they did in previous releases. Additionally, in my experience, it is just a matter of time of when such management applications evolve to something turning against the buyer. They will at least start to show advertisements and probably introduce some update function, adding DRM in one way or another, controlling what you do with the applications you bought. I have the previous releases of Doom and Doom II in my purchases and there is a chance GOG will eventually remove them. As they cannot be bought anymore, there is no benefit for GOG in keeping them in my collection forever. I just hope I will not get disappointed by GOG the way I usually get disappointed by other companies in a comparable situation.