Source and debug repos keep getting added to repolist

Yes, it does. (Edit: Except the ones you have installed manually.) Just tried:

pluto:~ # zypper rm openSUSE-repos-Leap
Installierte Pakete werden gelesen...
Paketabhängigkeiten werden aufgelöst...

Die folgenden 2 Pakete werden GELÖSCHT:
  openSUSE-repos-Leap openSUSE-repos-Leap-NVIDIA

2 zu entfernende Pakete.
Nach dem Vorgang werden 2,8 KiB freigegeben.

Backend:  classic_rpmtrans
Fortfahren? [j/n/v/...? zeigt alle Optionen] (j): j
Removing service 'NVIDIA':
Removing repository 'repo-non-free (15.5)' [..Removing repository 'repo-non-free (15.5)' [....done]
done]
Service 'NVIDIA' has been removed.
(1/2) openSUSE-repos-Leap-NVIDIA-20240510.6bfa644-lp155.2.9.1.x86_64 wird entfernt ................................................................................................................................................................................[fertig]
Warning: Unknown service 'openSUSE': Removing orphaned service repository 'openSUSE:repo-oss'
Removing repository 'repo-oss (15.5)' [..Removing repository 'repo-oss (15.5)' [....done]
done]
Warning: Unknown service 'openSUSE': Removing orphaned service repository 'openSUSE:repo-non-oss'
Removing repository 'repo-non-oss (15.5)' [..Removing repository 'repo-non-oss (15.5)' [....done]
done]
Warning: Unknown service 'openSUSE': Removing orphaned service repository 'openSUSE:repo-openh264'
Removing repository 'repo-openh264 (15.5)' [..Removing repository 'repo-openh264 (15.5)' [....done]
done]
Warning: Unknown service 'openSUSE': Removing orphaned service repository 'openSUSE:update-oss'
Removing repository 'update-oss (15.5)' [..Removing repository 'update-oss (15.5)' [....done]
done]
Warning: Unknown service 'openSUSE': Removing orphaned service repository 'openSUSE:update-non-oss'
Removing repository 'update-non-oss (15.5)' [..Removing repository 'update-non-oss (15.5)' [....done]
done]
Warning: Unknown service 'openSUSE': Removing orphaned service repository 'openSUSE:update-backports'
Removing repository 'update-backports (15.5)' [..Removing repository 'update-backports (15.5)' [....done]
done]
Warning: Unknown service 'openSUSE': Removing orphaned service repository 'openSUSE:repo-oss-debug'
Removing repository 'repo-oss-debug (15.5)' [..Removing repository 'repo-oss-debug (15.5)' [....done]
done]
Warning: Unknown service 'openSUSE': Removing orphaned service repository 'openSUSE:repo-oss-source'
Removing repository 'repo-oss-source (15.5)' [..Removing repository 'repo-oss-source (15.5)' [....done]
done]
Warning: Unknown service 'openSUSE': Removing orphaned service repository 'openSUSE:repo-non-oss-debug'
Removing repository 'repo-non-oss-debug (15.5)' [..Removing repository 'repo-non-oss-debug (15.5)' [....done]
done]
Warning: Unknown service 'openSUSE': Removing orphaned service repository 'openSUSE:update-oss-debug'
Removing repository 'update-oss-debug (15.5)' [..Removing repository 'update-oss-debug (15.5)' [....done]
done]
Warning: Unknown service 'openSUSE': Removing orphaned service repository 'openSUSE:update-non-oss-debug'
Removing repository 'update-non-oss-debug (15.5)' [..Removing repository 'update-non-oss-debug (15.5)' [....done]
done]
Warning: Unknown service 'openSUSE': Removing orphaned service repository 'openSUSE:update-backports-debug'
Removing repository 'update-backports-debug (15.5)' [..Removing repository 'update-backports-debug (15.5)' [....done]
done]
Warning: Unknown service 'openSUSE': Removing orphaned service repository 'openSUSE:update-sle'
Removing repository 'update-sle (15.5)' [..Removing repository 'update-sle (15.5)' [....done]
done]
Warning: Unknown service 'openSUSE': Removing orphaned service repository 'openSUSE:update-sle-debug'
Removing repository 'update-sle-debug (15.5)' [..Removing repository 'update-sle-debug (15.5)' [....done]
done]
Service 'openSUSE' not found by alias, number or URI.
(2/2) openSUSE-repos-Leap-20240510.6bfa644-lp155.2.9.1.x86_64 wird entfernt .......................................................................................................................................................................................[fertig]