Changing the Google Sheet link in the app

It would be great if Glide had a feature that links to a different Google Sheets on the fly. With the same app, User A can use a completely different data as User B, by linking separate Google Sheet files. For example, User A and User B can load their own financial data by pointing to a different Google Sheet file, as long as the files have the same column names.

Is there a reason you don’t want to do this with only one source of data, just filter by the signed-in user’s email?