Deezer HiFi icon disappears when I stream to Chromecast Audio

Hi, I’m new here and I’m trying Deezer HiFi. I have some doubt about the HiFi quality when used with Chromecast audio (and with normal Chromecast). 
by monitoring the traffic network there's a huge difference in the speed and Mb transferred between the android app and the Chromecast.

After reading a lot of conversation about this subject ( Deezer Hifi with CCA ), I understood that Deezer Hifi is sending same amount of traffic but they say that their integration uses the latest Google protocols and this is Hifi COMPATIBLE. Finally, they send same traffic but because of protocol, CCA can be stream not exactly same quality with Hifi.

I think this is the final situation.

It’s not just the HiFi logo, this one is kind of confusing too when casting to my HiFi-capable H&K surround system.

Here you see I’ve got HiFi enabled for casting, but HQ over WiFi and on the road:

Now when casting the UI indicates it’s only HQ and not HiFi:

And if you choose Hifi over WiFi?

Yeah that then shows HiFi but even now my surround system is streaming at 1.3 Mbps. So I think it’s the UI that’s not very clear that it in fact is streaming HiFi.

Year later and still the same, HIFI logo is gone when casting to Chromecast Audio (not streaming from the phone, casting… phone is just a remote controller, you can turn it off when casting is started.. stream goes directly to CCA, it seems that many of you don’t understand this..).  

And according to data bandwidth it’s not just the logo, lossless stream doesn’t go to chromecast, only 320 kbps.. 

And CCA or any other chromecast is perfectly capable of streaming lossless (HIFI) .. 

But obviously developers don’t care, I guess 99% users just use their phones and cheap earphones.. so who cares for us who actually want to use it for what it is advertised ..

I just want to use native Deezer android or iOS app and control streamer with that, and every integration in different players suck (no real Deezer app), maybe only sonos is ok, but sonos is lifestile product, not HIFI, so pointless. 

CCA is perfect cheap little device with optical output so I can connect it to some serious DAC, and most important it works with original deezer apps.. but.. obviously no one cares ..  

The Chromecast Audio was killed by Google in 2019 so it’s not supported anymore read the article: https://techcrunch.com/2019/01/11/google-cans-the-chromecast-audio and btw it’s sending the audio in lossless .flac only it doesn’t show you that it does.

Yea, I know CC Audio is discontinued, but as I can see from other comments it’s the same with any other stand alone chromecast, or built in chromecast functionality in various devices. 

Maybe is streaming FLAC in some cromecast devices, but confusing with logo disappearing ..  

There are basically only two ways to get Deezer HIFI  from native Deezer app to real HIFI sistem. Computer with web player + usb DAC → audio system  (yes, stand alone app doesn't even have cast option)

or 

cast to chromecast compatible device - much more convenient, you can use phone, tablet or laptop .. 

Every other solution implemented in audio streamers from different brands doesn't use real Deezer app but it is inside streamer app, mostly with confusing interface, no flow etc..  

@Deezer 

Pourquoi ne pas demander à vos developpeurs de conserver l'icône HI-FI affichée sur le téléphone pendant la diffusion vers la Chromecast audio ?

Je suis développeur, je sais que c'est d'une simplicité enfantine . 

Si vous ne le faites pas toute le monde aura toujours un doute , car depuis le temps que ce sujet est discuté, la seule raison qui semble justifier que vous n'afichiez pas l'icône est que vous ne pouvez pas vous le permettre légalement .…

Je vous propose une chose très simple pour rassurer le monde entier : affichez l'icône sur l'appareil de contrôle (téléphone , tablette.. ) pendant la diffusion vers la Chromecast audio .

Salutations,

Michaël