Then why not go with nextjs outright so you can apply the exact amount of interactivity for every little detail on your website without changing your entire setup halfway through.
Next.js is a fantastic solution if you're building a SPA.
Imagine I'm a very early stage startup so I start out with a simple app built on Laravel. All my engineers are relatively non-senior PHP folks, not great at JavaScript. So it's rendered server-side in PHP - easier to achieve enough performance, security, maintainability by leveraging the framework. Then I want to put some tiny bit of client-side interactivity. Going full SPA with Next.js would involve a lot of extra cost and complexity. jQuery and Alpine fit well into that niche, and Alpine particularly helps with reacting to state in a way that jQuery is hard.
