I've quite enjoyed gnome so far. What are your complaints with it? Granted I don't think I have actually used another DE but I genuinely don't run into issues with gnome and the design is good enough imo.
Unpopular opinion: Gnome software is pretty solid, and if your computer usage patterns overlap with their design, it is quite a lovely DE. I'd rather have something that works well, even if it doesn't do everything under the sun.
This is even more relevant to Digimon. I have no idea of whether their file format is supported, or how digiworld differs on OS's. I'd have to guess it's some type of web protocol? Dunno...
Edit: dug back into my childhood, the Digiworld is stored on a cluster of servers, so those are pretty likely going to be some flavor of linux. Local PC client applications are used for storing Digimon locally IIRC, and we also see in this clip that it appears that the guys are using windows 95 or something similar.
I haven't slept in 24hrs and honestly I don't get the hate. Just use gnome default and it works that's it. no need to customise just use as is and doesn't break.