I recommend you disable the Data-Saver option on your device and do a clean reinstall, following the steps described in this article.
If your Canvas feature is still not available after that please add your +Vote to this Ongoing Issue and keep your app updated to make sure you always have the latest and best version of Spotify. You can also subscribe to the topic to get updates new info gets shared.
Have a nice day!
Billy-JRock Star 24
Help others find this answer and click "Accept as Solution".
If you appreciate my answer, maybe give me a Like.