If Sonic Mania wasn't enough the PC version of Sonic Forces ALSO has DRM.
Not the biggest issue but it still sucks that if you are a PC gamer, and your internet goes down you won't be able to play these games until it gets fixed.
To keep this somewhat Dreamcast related White Jungle might be a returning stage in the game, key word is MIGHT. There was a Sonic Forces concert where the singers of the Park Avenue song performed some of the music live, and it was confirmed that the Custom Hero's Green Hill Zone song is called "Guardian Rock", we got new lyrics for the main theme Fist Bump (the video that was posted earlier was only a sample), and they also performed a White Jungle remix. The original song in Sonic Adventure 2 was badly filtered but means that this is live it's much easier to hear the lyrics.
In the Episode Shadow DLC gameplay the stage was GHZ and had a Biolizard remix so the stage may not be in the game and the remix is just for some random stage but I'd say that there's still a good possibility that White Jungle could be in Forces since Forces takes place in an apocalyptic world where Eggman won.