This is a confirmed track by DNDM available on platforms like Shazam .
Based on the current available information, there is no widely indexed song titled (Goodbye) specifically by an artist named DNDM . It is possible the track is a very recent release or you may be looking for one of these similar songs: DNDM - Прощай -
If you are certain about the artist and title, could you share a few you remember or mention where you heard the song (e.g., TikTok, SoundCloud)? This is a confirmed track by DNDM available