Is Mixing SSR and CSR on the Same Page a Good Practice?

I'm working on an eCommerce project for learning purposes using Laravel. I want to know if it's okay to use both Blade templates and API endpoints within the same project and even on the same page.

For example, I have a product page that I plan to build using a Blade template. However, I also want to include an area on this page where I can make JavaScript AJAX calls, such as for an "add to cart" feature. Is it acceptable to combine server-side rendering (SSR) and client-side rendering (CSR) in the same project and page?

Thank you for your answers!

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