I outsource so much of my memory to the phone via Siri ALL THE TIME. It’s so useful. Even for things in 20m. I’ll easily forget if I don’t do this, and it’s reliable so it gives me confidence. It also keeps the notification present until I actually do the thing, so I have a kind of string around my finger until the task is accomplished. I can also snooze that notification as needed to rebring it up at the right time.
Every time I do this around non-tech people they go “wow I didn’t know you could do that.” I swear it’s literally life changing, particularly for anyone over 30.