Best practice in integrating JS framework single-page-app into Spring Boot?

I am looking for your thoughts as an experienced Spring Boot engineer that have integrated Vue.js/React/Angular/Ember etc as a Single Page App into Spring Boot.

What is the best way to integrate the SPA to Spring Boot framework?

I have previously implemented this as a single project with a single Spring Thymeleaf template in resource where the bundled js would be linked after NPM builds.

It worked, and it worked well, but there might be more streamlined ways out there. There were a lot of manual setup get it work, and I am wondering if any Maven/Gradle enhancements in this area.