There are multiple artists using this name.
These are photos from concerts where Undergang played, so they may be of other bands that played the concert as well.
Mass Destruction Metal Fest VI 2023 Nov 3 - 5, 2023 Atlanta, Georgia, United States Uploaded by Trey Smith
Brutal Assault 2022 Aug 9 - 13, 2022 Jaroměř, Czech Republic Uploaded by Ziemi100feles