power-profiles-daemon is not a hard dependency of plasma/kde, everything works fine (except for changing power profiles) when the service is disabled. Having power-profiles-daemon as a dependency prevents the use of tlp for power management instead, as it Conflicts power-profiles-daemon
fixed with https://invent.kde.org/neon/neon/seeds/-/commit/09ca7043d2c07d09681fb6d8358f593ba465a27d will be snapshot into user soon (TM)