Hi @Domorkus! Thanks for sharing this and welcome to the Community! 🙂
We're sorry that you still can't stream music on devices like HomePod mini using Spotify, however, we recommend having a look at thisLive Idea suggesting the implementation of this feature.
You can support the idea by adding your +VOTE and clicking on Subscribe in the three-dots menu at the top right corner next to the title. That'll make sure you stay up-to-date with any relevant updates about this. It’s also worth knowing that the higher the number of votes an idea gets, the more likely it is for the idea to be implemented.
Spotify always takes new ideas and feedback into consideration to improve the app. Here you can read more about how ideas work.
Hope this helps. We'll be here if you need anything else.
Help others find this answer and click "Accept as Solution".
If you appreciate my answer, maybe give me a Like.