In the Phoenix LiveView world, the solution has been to use Alpine.js for user interactions that don't involve loading data from the server [1]. Alpine and LiveView are the AL in the "PETAL stack" [2]

[1] https://dockyard.com/blog/2020/12/21/optimizing-user-experie...

[2] https://changelog.com/posts/petal-the-end-to-end-web-stack