.NET packages targets question

[WeihanLi]

Since .NET Standard is replaced with new .NET
https://devblogs.microsoft.com/dotnet/the-future-of-net-standard/

So do we still need to target for netstandard2.0, we have to reference some may not needed packages in the runtime such as Microsoft.Bcl.AsyncInterfaces/System.Memory etc which would cause package version conflict more easily, while for net8.0(take this for an example) these packages are not necessary to be a dependency since the framework includes these packages.

From the packages like System.Text.Json/Microsoft.Extensions.DependencyInjection, they add net6.0/net8.0 targets more than netstandard2.0, I also noticed that the new package Microsoft.Extensions.Http.Resilience had removed netstandard2.0 target, is this the correct way?

I'm not sure which is the correct way to go from my limited knowledge, and should we re-consider the target framework for the packages?