Lossless option for Google TV

It’s very common now to use a Hifi connected to the main TV for music.

How can we enable for FLAC for the Deezer Web App for Google TV? 

One of the main reasons I moved from Spotify was to get FLAC but now I can’t tell if I get the benefit at all and I’m guessing not.

I was advised to use Cast but this is a poor experience compared to the TV navigation and has various bugs that make it non-workable.

Please can a preference be created to use FLAC in the TV UI:

1) This is a home network so no bandwidth concerns

2) Key feature vs Spotify and right now I am missing it in nearly all my listening