Point your @ record to the-byron-co-op-1.gogecko.com as well. But you’ll need to configure this on your host’s side as well, alternatively you can configure the naked-domain-to-www redirect from #tutorials.
Plus, make sure your encryption mode is “Full Strict”.
I ended up creating A record for @ through to dummy address then creating page redirect within cloudflare as per tutorial here: Redirect example.com to www.example.com