RLS issue in the application

Then you can follow this approach:

Create Separate RLS Roles:
Project Manager Role: For conditional access.
Full Access Role: For full access.

DAX for Project Manager Role:
[Column1] = USERPRINCIPALNAME() ||

[Column2] = USERPRINCIPALNAME() ||

[Column3] = USERPRINCIPALNAME() ||

[Column4] = USERPRINCIPALNAME()

DAX for Full Access Role:TRUE()

Implementation Steps:

Create Roles in Power BI Desktop:
Go to "Modeling" -> "Manage Roles".
Create "Project Manager" role with the DAX filter for limited access.
Create "Full Access" role with TRUE() DAX filter.
Publish the Dataset: Publish the dataset to the Power BI service.
Assign Users to Roles in Power BI Service: Under "Security" for the dataset, assign users to the appropriate roles.
Configure Report Access in Power BI App:
In the app, configure access:
For Report 1, assign the AD groups to "Project Manager" role.
For Reports 2, 3, and 4, assign specific people to "Full Access" role.