Now you can use scoping rules on supported objects without contacting Salesforce.
Where: This change applies to Lightning Experience in Performance, Unlimited, and Developer editions. Scoping rules are included in Developer editions created after April 2022.
Who: Beginning in Winter ’23, admins can use scoping rules on supported objects without Signature Success or Program Architect.
How: To create a scoping rule, navigate to Object Manager in Setup. Select a supported standard or custom object that you want to add a scoping rule for. Click Scoping Rules. You can also create and modify scoping rules using Tooling or Metadata API.
Try Scoping Rules in Performance and Unlimited Editions (salesforce.com)