How can I make Hangouts Dialer my default calling app in Android 10 SamsungS9

I have a Samsung S9+ that has upgraded to Android 10. While it was still in Android Pie, I could select/highlight a phone number, and the context menu that pops up lets me place a call on Hangouts Dialer.

But now on Android 10, I don't have that option.

I've gone to Settings-> apps -> three dots top right-> default apps.
But I can't change it there: http://imgur.com/a/EXnPUi3.

The phone is not rooted.

 

ocnbrze
Thanks for your reply. Is there a way to override this restriction? Like, is there an app that I can install that can serve as a bridge to making Hangouts Dialer my default app?

This is my one regret with upgrading to Android 10.