Based on my experience, the current state of Sylius the frontend development isn’t satisfactory. It misses the possibility of performing simple dynamic behavior of UI. Still, building a storefront for headless e-commerce using Next/Nuxt.JS requires significant effort, especially when SEO is a requirement.
Recently, Sensio Labs started the Symfony UX initiative, which provides a very basic javascript ecosystem. Symfony Turbo is the backbone of this idea, providing the speed of SPA w/o the need to write JS. However, it might be extended with Stimulus to create more complicated UX experiences.
It looks like a very logical enhancement for the existing templating/theming approach without the need to abandon Twig.
Might it be the next step for Sylius UI evolution? Please share your thoughts and experiences if such.