Which is the Contacts App that goes with Android 10, and what will happen to my contacts if I delete the other one?

A while ago I upgraded my phone and went from some old version of Android to a newer version, version 10. I'm confused about which version of the app I should delete. - There's a contacts icon with a blue circle background that reads as version 1.7.10 stockplus and it's 33.79 kb. - There's a contacts icon with a white face that reads as version 4.51.25.735555589 and it's 43.43 MB. 1. Which one came with Android 10? 2. And most importantly; do I have to worry about losing my contacts?