Thanks for sharing, we're revisiting how we handle this right now. One edge case I've just run into with making title required on IconButton is where it's clipped by overflow: hidden, so we need to extend our component APIs with these tooltip behaviour options to keep the a11y type safety

Thank you @kettanaito.com, seeing how msw handled this helped me figure this out

We use @axa-fr/oidc-client which uses this approach