Truthfully, my answer would be no. As an android user I sort of feel like we are kind of second class users here, kind of. In part because apple has airplay support, while there is no equivalent for android because google cast is not supported. Yet. Maybe. There has been talk that it would be included since before launch, but no solid answer if its possible or ever actually coming. And to answer your question, even though they specifically mention spotify in the user manual, there is no spotify connect, and I dont think I have heard anything as to whether its actually coming. I have a feeling spotify was mentioned because you can likely use spotify connect via any airplay device, which the poly is... however, that doesnt work on android, and again, no google cast support, yet if ever. There is however an app called hify that you can run (without root I think) that allows spotify to see your poly. But its yet another app you would have to buy. And in my experience, the connection has been not great... though it could also be that my poly is having other issues anyways.
Also, if you are just planning to use it as a streamer for spotify and not even playback your own music files, there are likely better and cheaper options than a poly. The mojo is still solid, and you could get that and another dap/device (or even just your phone) and hook it up the mojo and play spotify that way. Its not an all in one solution and requires a cable and can be a bit awkward, but the poly is definitely overkill for what it seems you want, especially because it doesnt even natively do what you want.
Edit: the post by
@miketlse right below this one does point to an upcoming changelog where chord does say streaming service support via dlna, but no mention if thats spotify or whether that will do what you want. I also still think a poly is overkill if you are just planning to use it for spotify, but maybe we will find out more this coming week when the next firmware is supposed to drop.