help.leavemealone.com. is a CNAME to leavemealone.helpkit.so which again is a CNAME to helpkit-ssr.onrender.com. and so forth till you get the A records. Your browser then connects to that IP and there you get the 302 redirect. I'm still not sure what I should see here.
The A records that you've gotten to are unrelated to Gitbook and there are no 302 redirects on our side. As far as I understand it's some internal redirect happening in Cloudflare's network.
EDIT: This is a CNAME chain and although it's not recommended it's valid https://serverfault.com/a/309660