Given the mindshare iron grip Microsoft has over .NET ecosystem, it's able to dictate the Web Framework that most of .NET will use - which is now Blazor.
But now that Blazor SSR with Enhanced Navigation offers an optimal UX out-of-the-box, Blazor's going to become the only real future option for Web Development in C#/.NET. I wouldn't have considered it (for Internet App's) before .NET 8, but now its basically the only real future choice for creating any kind of new Web App in .NET (excl. CDN Hostable, SSG Websites).