How to get application url in kotlin?

I tried to develop an android application in kotlin that can receive URL from all application (e.g: website of tiktok, instagram or google). I tried to use okhttp, create my own vpn but nothing work like I want.

I find QUERY_ALL_PACKAGES to take informations of all the application. I don't know how it work and how to use it to do want I want.

Thanks for your responses.