Unable to fetch All Internal Lists Using "GetListCollection" Method (SOAP) in SharePoint 2019 | Java

When working with SharePoint on-premises Server 2019, I am encountering issues with the SOAP service. Specifically, I am unable to fetch all internal lists using the "GetListCollection" method. Is there another endpoint to retrieve a comprehensive list of all lists? Please refer to the details below:

1. Language: Java 17
2. Permissions and Access Rights: Not a concern in this case.
3. Response Status: 200 (No errors encountered).

Despite receiving a successful response, several lists/tables are not being retrieved. The missing lists/tables include:

• Attachments
• FileVersions
• GetValidTerms
• Groups
• Lists
• Permissions
• Roles
• Subsites
• Users
• Views

I am aware that SharePoint utilizes a dedicated SQL Server database to store its data. Are the aforementioned lists/ tables stored there, and can these lists be accessed separately from the server?

Any guidance or suggestions would be greatly appreciated.

Thank you.