Filtering by role now has been streamlined. A new Roles multi-value field has been added, so you can filter on individual roles even for users who have several.
We are currently continuing to provide support for the old Role field, now relabeled Role (legacy).
The new Roles field is available across App Users tables, Dashboards, Access Reviews, Renewal Forecast, License Recommendations, Workflow triggers, and the Public API (roles returns as an array).