Me too. Battery Manager.
That’s really strange. I tried that a while ago. Without success. Now I’ve turned Battery Manager off again and set the battery optimisation for the launcher (total launcher) to “unrestricted”. And the problems seem to have disappeared. That doesn’t necessarily mean there’s a connection. But it seems to have changed something in the system. A few days ago, I reset the launcher back to “optimised” and it continues to work. Battery consumption has also decreased slightly overall.
Hopefully it will stay that way.