Web components are awesome I've been using them in production using StencilJS for a pretty large app for about a year now. Even though browser support is widely available there are still a few gotchas with web components, specially Shadow DOM. Not all community tools have caught up as well. For example you can't use Stripe v3 with Shadow DOM. Most analytics tools also cannot access the Shadow DOM. We had to remove Shadow DOM from all our components that were using it. In my opinion Web Components are definitely the future but there's still some catching up to do before we can claim it can replace frameworks.