Hi,
Welcome to share here!
There is a tool for your reference: New tool: Policy Analyzer
https://techcommunity.microsoft.com/t5/microsoft-security-baselines/new-tool-policy-analyzer/ba-p/701049
Or you can use the output of the Gpresult.
On the client, run the CMD as administrator, runt the command : gpresult /h report.html
All the GPOs for the client will be list in the report.