@GaryGriffin created a template for new reports.
And as mentioned in an earlier posting in this thread, there is an Adapt a built-in Report wiki placeholder. And a Report-writing tutorial.
Perhaps you could look through those while creating adding a filter to your adapted report? They could use some love and be improved.
There are a lot of reports. So gathering encouraging a group of people to rackle upgrading reports would have a lot of benefits.
It would give people confidence to build and publish new reports and maybe create a collaboration resource. It would be nice if someone came up with a more intuitive replacement Label for “Report options (2)”!