plymouth-start.service KillMode=none. This is unsafe

Dear opensuse list, since upgrading to opensuse leap 15.3 I do receive the following lines in the log: Jan 18 08:19:26 cx41 systemd[1]: /usr/lib/systemd/system/plymouth-start.service:15: Unit configured to use KillMode=none. This is unsafe, as it disables systemd's process lifecycle management for the service. Please update your service to use a safer KillMode=, such as 'mixed' or 'control-group'. Support for KillMode=none is deprecated and will eventually be removed. Is this something I need to worry about? What's the best way to fix this? Mixed? Control-Group? Thanks & greetings Becki