Hi @markhhg,
Well-Handled is completely agnostic in regards to implementation, but in order to actually use any of its methods, you need to be in control of your application’s flow (or at least be able to hook into the relevant spots at the right time).
I’m not familiar with Elementor, but in general, third-party form plugins lack the sort of low-level API access required to substitute processes like data handling and template building. Advanced use cases aren’t really the market they’re after. ??
In practice, Well-Handled is best used within custom code bases.