This is the requirement actually i got.
Add a new field for ALL issue types from "ARC: Scrum Issue Type Scheme".
Field name: Squad
Field position: In People section between Assignee and Reporter
Field values: (can be empty - default value), Content Migration A, Content Migration B, BrandLab, Suppliers Portal, Features, Testing Automations, Cross-squad
Field to be single-select value and only values from the list above can be selected (or it can be empty).