I store my contacts in my Google account. I can access these contacts on my Samsung Galaxy S9 phone via the Samsung contact application. After I add a contact in my Google account via another device, how can I force my contact list to get updated on my Samsung Galaxy S9?
On every Android device I have worked with there was always an option to force synchronization of Google data in the settings of the account:
Open Android settings and navigate to the account list. Open the used Google account and then it's "Account sync" page (synchronization settings).
There you can enable/disable each synchronization category like Contacts and so on. And there is in the upper right corner a three-dots-menu which allow to "Synch now"