Before you are able to find/install packages from a private NuGet feed you have to add the feed to your “NuGet Package Manager – Package Sources”.
For an article about how to build and deploy NuGet packages, see:
Visual Studio 2022
Find your private package source in Azure DevOps (Navigate to your project -> Artifacts -> Connect to feed -> Visual Studio):
Enter the source in Visual Studio (Tools -> Options -> NuGetPackage Manager -> Package Sources) and enter the source you copied from the previous step – Visual Studio might prompt your for credentials
Verify you are able to find your package(s)
That’s all there is to it!