How to install a NuGet package based on major version - msbuild

Question

We use myget.org as NuGet server and here I upload a package named e.g. mypackage with two different major versions e.g. 6.0.1 and 7.0.1, and there can be several versions for each major version but I always want to have the latest version though the correct specified major version. So in one branch of my code I want to have 6.0.X (X = latest) and from another branch I want to have 7.0.X
Currently I do below in my msbuild, where MyPackage id have major version in the name, but that is not scalable.
<ItemGroup>
<Packages Include="MyPackageX">
<Source>https://xxx.myget.org/myfeed/index.json</Source>
</Packages>
</ItemGroup>
<Exec Command="$(NugetExe) install %(Packages.Identity) -Source %(Source)
-OutputDirectory $(PackagesFolder)\Package -ExcludeVersion -noninteractive
-prerelease -verbosity detail" />
I would perfer to do it from a msbuild script. Is it possible?
Simplified example
Build.msbuild file:
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" DefaultTargets="Build">
<PropertyGroup>
<RestoreProjectStyle>PackageReference</RestoreProjectStyle>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="NLog" Version="4.6.3" />
</ItemGroup>
<Target Name="Build" />
</Project>
In the same folder I have a nuget.config:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<config>
<add key="repositorypath" value="packages" />
</config>
<packageSources>
<add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
</packageSources>
</configuration>
From my developer command I type: msbuild build.msbuild
But no NuGet is installed so it doesn't make much sense to use wildcard before this simple scenario works.