Reporting is not working for me -- complains about invalid index name "_opendistro"

OpenSearch Dashboards Reporting Plugin
5

And now I do see some errors in the elasticsearch log:

[2022-05-04T09:47:11,935][INFO ][c.a.o.s.p.PrivilegesEvaluator] [es-master] No index-level perm match for User [name=kibanaserver, backend_roles=[], requestedTenant=null] Resolved [aliases=[*], allIndices=[*], types=[*], originalRequested=[*], remoteIndices=[]] [Action [indices:monitor/settings/get]] [RolesChecked [kibana\
_server]]
[2022-05-04T09:47:11,937][INFO ][c.a.o.s.p.PrivilegesEvaluator] [es-master] No permissions for [indices:monitor/settings/get]

I am using kibanaserver as the user that kibana uses to connect to elasticsearch.
My kibana.yml has this relevant line:

elasticsearch.username: kibanaserver