You have seen that there are many integrations happening through tasker app to capture incoming notifications to your mobile phones and probably doing extra stuff around it like calling home assistant web api.
My proposal is to eliminate on tasker dependency and creating an optional feature in home assistant mobile app to be able to capture notifications and send them as events to home assistant, if it was setup.
Please go and check if you can see notifications coming from other apps under App Configuration - Notifications History. All i see notifications from home assistant companion app, i don’t see any other type of notifications. I would like to capture notifications from other apps so i can react on them. Can you tell me where you see them?