Ok, changed from https://blog.staging.begin.com/posts/2022-01-27-the-boring-t.... Thanks!
I'm years out of date on this stuff, but I note the staging URL has found its way into Google as well, you might be able to fix that up by adjusting the <link rel="canonical" href="https://blog.staging.begin.com/..." /> to point to the authoritative URL even when the page is on the staging server.
Dunno where the staging server came from
https://blog.begin.com/posts/2022-01-27-the-boring-technolog...