applications – How to create a simple reminder on a (Samsung) Android phone from google calendar?

I want to create a reminder in google calender (using a proper computer etc.), which will be synced to the Android device. The android device is an older Samsung phone, where I use S Planner for such reminders/events for now.

The events itself are getting synced to the android device, but when the event is about to create a reminder nothing happens on the android device!

I want to be able to get a reminder on the android device at the time specified, at best with a kind of pop-up, a notification with a sound (ideally synced with google calendar).

How to do that?

Again: Just a simple attention-drawing reminder at some given time showing some text (e.g. “Call some person”). Nothing more, nothing less. Maybe there is a useable app for that?