I am using the following data with Sharepoint List as the data source.

User1 and User3 belong to only one team, so it is simple, but User2 belongs to two teams, so I want the report names of the two teams to appear in the drop-down.
The value in the User column will be the same as the value obtained from the PowerApps "User().Email", so you can use the account you signed in to PowerApps to filter the teams.

For example, in the case of User2, I have acquired the teams "X" and "Z" to which User2 belongs, but I do not know how to use them to display the report names of "Z" and "X".
Please, can you give me some good ideas and methods?
Best regards,
Lopez