Ironically Relay Classic only needed a babel plugin, whilst Modern has a separate compiler you need to use. That said, the main issue with Relay is that it stil

Ironically Relay Classic only needed a babel plugin, whilst Modern has a separate compiler you need to use. That said, the main issue with Relay is that it still has poor documentation, so it can't really compete with Apollo in that regard. But I'm not going back to a world without data-masking at the component level, so Relay is the only choice for me right now (though I wish it wasn't).