I am looking to know what is the best way to stream Tidal.  My setup is Sonos Port connected to Marantz amp via coaxial, and Google Pixel 8a.  The Port and Pixel are both on the same WiFi.  I have 3 options to stream Tidal.

1. Open the Sonos App then select Tidal.  If I use this option the quality level of what is being played does not appear.  Also once the stream is started I can turn off my phone and the stream will continue.  This tells me that the Port is connected directly to Tidal.
2. Open the Tidal App, start playing then select Port as the playback device.  This method does show me the stream quality but if I close the Tidal app on the phone the music stops.  It seems that the phone is connected to Tidal then passing it on to Port.  Not sure if the phone can pass the full quality of the stream as option 1 can.

Any thoughts on this to backup my thoughts would be appreciated.

Another option I have but have not tested is to use HEOS that is built into my amp.