Amazon QuickSight now supports nested conditions within Row Level Security (RLS) tags where you can combine AND and OR conditions to simplify multi-tenant access patterns. You can use RLS with tag-based rules to restrict access to a dataset when embedding dashboards for anonymous users. Previously, you could combine RLS tags using AND condition with a value you assign to the tags at run time. To learn more about setting up row level security using session tags with the OR condition click here.
Source:: Amazon AWS