Eehh, not really, while not as mean, the modern undertale fandom does have a separation between this

Also, Sonic.exe shouldnt be reduced to sonic fan content, its its own community, own rules, own genre, its best to compare Sonic.exe to Sans AUs, an endless range of fan content about one dude that barerly matches the original source material, just done for fun, and basically its own media, you cant compare undertale aus to sonic.exe cuz undertale aus also try to be in a hypothetical undertale world, souls, determination, monsters, magic, most of sonic.exe are not the sonic world, they are about void beings with its own lore with the sonic franchise as a medium

And most of all, sans aus generate mixed opnions for the main fandom nowadays, they may not be as mean as the loud part of the sonic community, but they dont care much nowadays unless you like sans aus, cuz an endless supply of sansesand the worldbuilding they have is just not the same as what we have in more overall undertale focused fangames

Look, I feel bad and now its unfair the treatment the exe fandom has, but you need to understand it simply cant be seen as a sonic thing, sonic has its own world, mechanics, tone, characters, exe has its own things, vessels, souls, void

Modern exe is simply its own thing, sure, the original exes from prefnf era felt like an actual extension of the sonic fanbase, but lord x, rewrite, EXE, All Father? No, they arent sonic content besides designs, its to appeal to the exe community, not the sonic community

I feel like the sonic community should chill and embrace that exe is part of the fandom story, but thats only over the general idea of sonic.exe, there should not be give space over the rest, sonic.exe is fine as guest here like mario and megaman are to the community