Frontend components are frontend, so until JavaScript is the only viable option, the answer is yes.

LiveView is a channel to pass data back and forth between backend and frontend in a very performant and size-effective way, that hides all the complexity involved, making it astonishingly simple to get started.

The presentation layer it's up to the developers.

Wanna react to a change?

setup a `phx-*` event

Wanna handle some custom event?

Setup a hook [1] [2]

[1] https://hexdocs.pm/phoenix_live_view/js-interop.html

[2] example of reacting to Monaco editor events: https://github.com/BeaconCMS/live_monaco_editor#fetching-the...