I basically have the same question - unfortunately no answer...
Have you tried to integrate the JS API oder the Runtime into a Blazor client app? If so, would you share your findings?
Thanks a lot
No, I din't try, yet. My ArcGIS application is .NET WPF. I am waiting for ready-to-use Blazor/Razor component.
P.S. Please click button "I also have the same question" in my original post, which I suppose may increase attention from ESRI staff.
There's a new Blazor API developed by an Esri partner that's basically a wrapper around the JS API. There are several samples and blog posts to get you started. And it's free to use.