Plasma and Cinnamon cannot be installed completely on the same system

[Laurent Bonnaud]

On a system where Plasma is fully installed (including the kubuntu-settings-desktop package) Cinnamon cannot be installed without removing some Plasma package:

# apt install cinnamon-core
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following additional packages will be installed:
  desktop-base
Suggested packages:
  cinnamon-desktop-environment
The following packages will be REMOVED:
  kubuntu-desktop kubuntu-settings-desktop
The following NEW packages will be installed:
  cinnamon-core desktop-base
0 upgraded, 2 newly installed, 2 to remove and 0 not upgraded.
Need to get 7,729 kB of archives.
After this operation, 19.2 MB of additional disk space will be used.
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This is new in Ubuntu 23.10/mantic. Packages were compatible in previous Ubuntu releases.

Would it be possible to have Plasma and Cinnamon to be compatible again?

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: kubuntu-settings-desktop 1:23.10.2
ProcVersionSignature: Ubuntu 6.5.0-5.5-generic 6.5.0
Uname: Linux 6.5.0-5-generic x86_64
ApportVersion: 2.27.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Sun Sep 24 12:36:38 2023
PackageArchitecture: all
SourcePackage: kubuntu-settings
UpgradeStatus: No upgrade log present (probably fresh install)