I use a program for appointments called Rainlendar on my PC. It stores the basic information in my Google calendar--Description, Date, Time. It doesn't have a phone app. I'd like to find an app for the Note10+ to access the just the Google Calendar basic information. I don't need to send or receive invitations, schedule meetings, etc.
Let me know what app you use and especially if it's a straightforward one for just basic information. Of course even if it full-featured, but you can configure a basic mode, that would be OK too.