Better phone notifications

Discourse phone notifications are a poor user experience. There’s a discourse app, but it’s basically just a thin shell for opening a Discourse site in the browser; everything significant is dona as a normal webpage; that includes using the web notification API, which is very limited compared to the native Android API: it cannot bundle multiple similar notifications, cannot expand to show longer texts, cannot provide instant actions, cannot be removed if the message is seen elsewhere.

Am I missing a better option? If not, is it feasible to do something about it?