How does the solution proposed by your parent prevent software companies from tracking what features their users are using? App developers don't need to be able

How does the solution proposed by your parent prevent software companies from tracking what features their users are using? App developers don't need to be able to track what other apps are installed or most of the other PII that these ad platforms track to determine what features are being used. Grindr could easily tell what features a user is using via logging what the user requests from their servers; after all a social dating app like that doesn't really have many features that don't rely on a network connection. So blocking the additional tracking wouldn't prevent them from seeing what information the user pulls/sends to their server and thus what actions the user is taking in the app. The detail might not be as fine, but I'm less than convinced that knowing the millisecond timing a user takes to perform an action is really all that helpful anyway.