Most clients also run relays so they would have access to the data. So if I connect to a relay that run the algo logic and other relays that don’t run the logic, how is my timeline being filtered? 

 No clients also run relays. A client exists on your device, a relay exists on some server.

You would have a separate timeline only for the algo relay. 

 Got it. I meant to say that clients dev also run relays. As long as the clients offer various options for the timeline that sounds good to me.