Exclude representative from Group Policy

Hi. We have a default Group Policy for all support teams that gives access to all jump clients. The policy applies to all members of our tenant, using the tenant ID. Is there a way to exclude specific agents so that the policy does not apply to them? I want to set up a separate Group Policy only for one agent to have access to only a very limited number of jump clients, but I can’t if they are already a member of the default group because they are a tenant member.