Internet radio - cover art

It would nice to have cover art on display during internet radio listening. In my case (latest Volumio 3.233) I can’t see it.

No display for all radios?
Or one specific? Which one?

In my case all radios which I’m listening everyday - Radio Nowy Świat, Radio 357, Soundstorm Radio, Radio Horyzont, Cinemix and more.
There is no coverart. No metter which player I’m using - iPhone or on my PC.

Can anyone help me with that problem?