I'm looking at using PostSharp on a Blazor server project and was wondering if the limitation/restrictions outlined in this Postsharp blog (https://blog.postsharp.net/post/blazor-support-6.7.html) apply equally to both the client and server versions of Blazor?
The limitations of using PostSharp with Blazor apply to Blazor WebAssembly only.
With the Blazor Server hosting model your app is a standard ASP.NET Core project. And the ASP.NET Core projects are supported by PostSharp without the limitations of WebAssembly.