I’m developing a web application with a C# .NET core backend and am seeking insights into the SEO implications of choosing between legacy server-side rendering (SSR) and modern single-page application (SPA) frameworks like Blazor, React, Vue.js or others.

The question is: does it worth using an SPA framework (even with SSR techniques) for an SEO-focused project?
Specifically, I’m interested in the SEO impact in terms of crawlability, indexing, and overall performance.

Thank you!