When I open the phone app via Blloc Ratio by default it opens the contacts list screen But what it should be opening is the dialer screen. Since other launchers are able to open the dialer screen first, hence I feel this is just a problem in Ratio. I don’t know about other devices, but I am facing this problem on my Redmi Y3.
I think you should post this to the Ratio Wishlist Thread as it fits best there since it’s a feature request. I think it will get noticed by devs way better there.
Here’s a link to said wishlist: