It happens again and again that either the nightly maintanance runs into the daytime operation or the global tasks are distributed in such a way that there is not really a meaningful daily maintenance window.
In order to avoid that the maintenance tasks hinder recalculations in the DB queue that are relevant to daytime operations, these should be outsourced, e.g. to another SQL agent.
An enhancement request (#33734) has been created.
The product team will evaluate the request and this feature may become available in a future release of the product.