Override rendering of built-in blocks (Link)

Is your feature request related to a problem? Please describe.
I'd like to override React rendering for links, but without completely re-implementing the Link code as a custom block.

Describe the solution you'd like
Ideally some way to provide a render that returns custom JSX

Describe alternatives you've considered
Considered re-implementing the Link code and disabling the existing default block but I want most of the same behavior, just custom rendering.

Start by reviewing how the built-in Link block renders and how custom blocks or block overrides are currently configured. Identify the existing Link behavior that must remain available and determine where a React render hook could fit. Done means a documented, tested way to provide custom JSX without re-implementing or disabling the built-in Link block.