Streaming

OK. This means you are using the DAC in the Oppo, which is fine. You could even use the Oppo as a very good pre amplifier and connect it directly to your power amplifier. However, on the Oppo you only have a Tidal App and nothing for other services. Fortunately the Oppo has an optical input as well, so you could simply get yourself for example a Chromecast Audio for some $30, plus a basic $10 optical cable (with mini plug at the Chromecast end), plug it into the Oppo, and you will have access to whatever streaming service you like, and with very good audio quality. Searching for the music you want is easier if you use a tablet rather than the small screen of a smartphone.

Yes, thank you, I didn’t think of that.  The Oppo could be used as a DAC.
How do you then access the other streaming services?

If you use the Chromecast Audio, you can install apps on your phone/tablet for any service you like, be it Tidal, Spotify, TuneIn, BBC radio 3 or whatever takes your fancy. Since the Chromecast is sold in such huge numbers, there is hardly any service that does not provide an app for it. The apps are in the Google Appstore. Designing these apps is the responsibility of the service, so not all of them are equally good. TuneIn and Spotify are good, but e.g. the Qobuz app does not yet work as well as it should. There are Apps for Android devices and for Apple. The way it works is that you have the app on your phone/tablet and you use that to connect to the service you subscribe to. It will start playing music on your phone/tablet, and when you then press on the cast icon, the phone/tablet will fall silent and hand over to the Chromecast. From that moment the streaming no longer goes to your phone/tablet, but directly from the router to your Chromecast and from there to the optical input of your Oppo/Dac and the rest of your stereo system. If you then want to choose a new piece of music or whatever, you take your phone/tablet, it will reconnect to the Chromecast, and you can instruct it to stop the current music and start something else.
Since the Chromecast Audio is so cheap, you lose nothing by experimenting. Make sure you get the Audio version and not the more common video one. And don’t let anyone persuade you that it does not have a digital connection - it does, but it uses the same multifunctional mini connector for both analogue and optical digital. Just make sure you have an optical cable with the mini connector at the Chromecast end and you are fine.
I hope this clarifies it a bit.

Thank you so much for your detailed explanation.
i do appreciate it!

Gladly done. Let us know how it all ends. I think it is a great system that costs next to nothing and has no sonic drawbacks even if combined with high end components. I admit, however, that if there is a glitch I sometimes need to consult my nineteen year old son......