"We consider Vue and Web Components to be primarily complementary technologies. Vue has excellent support for both consuming and creating custom elements."
You can consume Web Components in React just fine.
It's not seamless for a variety of very well documented reasons (stemming, in no small part, from the design of Web Components themselves).
And yes, consuming and perhaps sometimes compiling to web components is the extent the absolute vast majority of frameworks do. You'd do well to read and listen to what the authors of those frameworks have to say about web components.
From those three, only React doesn't provide Web Components interop, or the option to produce their components as Web Components.
As for your Vue remark.
https://vuejs.org/guide/extras/web-components.html
"We consider Vue and Web Components to be primarily complementary technologies. Vue has excellent support for both consuming and creating custom elements."