Hi, I came back to say that I did the inclusion of Alpine in a slightly different manner. I’m using Alpine 3.2.1 and the snipped showed in the post helped, but didn’t solved all the problems I was having. So I’m leaving my snippet for anyone who comes across the same problem and can’t solve using the post:

Edit: I also should mention that maybe I have something wrong in my code that forces me to do things this way. I’m a beginner at Elixir/Phoenix, so if something looks off about this code or the approach, please, correct me

// FIRST IMPORT THE ALPINE MODULE AS YOU ARE USED TO
import Alpine from 'alpinejs';
// I'VE ALSO ATTACHED IT TO THE WINDOW OBJECT
window.Alpine = Alpine;

let liveSocket = new LiveSocket("/live", Socket, {
    dom: {
        onBeforeElUpdated(from, to) {
            if (from.__x) {
                window.Alpine.clone(from.__x, to);
            }
            
            if (from._x_dataStack) {
                window.Alpine.clone(from, to);
                // I HAD TO INITIALIZE THE TREE EVERYTIME IT UPDATES. 
                // I WAS FACING "Alpine is not defined" ERROR WHEN I DIDN'T
                window.Alpine.initTree(to)
            }
        }
    },
    params: { _csrf_token: csrfToken },
})
...
// DON'T FORGET TO START ALPINE AND DON'T PUT THIS SNIPPET
// INSIDE THE onBeforeElUpdate HOOK. 
// I KNOW THAT SEEMS IRRELEVANT, BUT IT COULD CAUSE A MASSIVE MEMORY LEAK
// BECAUSE IT WILL DUPLICATE ALL LISTENERS EVERYTIME THE VIEW UPDATES
Alpine.start()

Thank you for the help!