
Explanation:

Box 1: -eq "Guest"
Dynamic membership rules for groups in Azure Active Directory
Supported expression operators
The following table lists all the supported operators and their syntax for a single expression. Operators can be used with or without the hyphen (-) prefix. The Contains operator does partial string matches but not item in a collection matches.
* Equals
-eq
* Contains
-contains
* Etc.
Box 2: -contains "Support"
Incorrect:
* -in
If you want to compare the value of a user attribute against multiple values, you can use the -in or -notIn operators.
Reference:
https://learn.microsoft.com/en-us/azure/active-directory/enterprise-users/groups-dynamic-membership