Exactly. Senders have earned the questionable reputation that they have because they rabidly want your attention whether you want to give it or not.

I used the Southwest Airlines app recently and allowed notifications so that I could find out about things like delays and gate changes (both of which happened on my trip). Less than a week later I'm getting ads for travel "deals" pushed as notifications.

Unsurprisingly, it was difficult to find the notification setting, which was on their website, not even in the app.