New to D220 pro

[ArnoNYC]

The expert (no core infinity) and expert pro (core infinity) serie can't do tidal connect (directly streaming from tidal to the expert) hopefully that's an evolution they will put in their roadmap.
That's why you need Roon. Roon has possibilites for lossless streaming. Roon can also be used to stream lossless local source if you have.
People that are able to stream are most likely using another intermediary like running tidal on PC and using devialet air drivers on windows or mac. Those can be downloaded on the site.

I'm a recent owner too so i might be wrong 😇

I simply stream Tidal from my iPhone to the Expert Pro via Airplay. Very happy with it. I understand there are other options like via a Roon server but that's too much hassle for me.

I don't think Airplay supports the highest resolutions available through Tidal or Qobuz. I had the same reluctance as you about setting up a Room server and opted for MConnect (something like 5 USD on the App Store) to stream to my 220 Pro through the UPNP channel - set up was straightforward, the app retrieved my Qobuz credentials and now seamlessly gives me access to the Qobuz catalog (although I don't find the MConnect app UI as good as the native Qobuz app)