iPhone 11 and Apps Configurations??

Hopefully I can describe this issue clearly. Situation is (example) I received email from Nextdoor with a link.
I click on the link and it routes me thru various pages until I get the App Store to install Nextdoor.

Issue is Nextdoor app is already installed. This happens with Venmo and a couple of other apps.

What do I have to do to sync my iPhone up correction with the apps installed?