Wordpress is low-code in the sense that somebody else wrote most of the code already, but it's incredibly high-maintenance. At some point some plugin is going to break or the cache is going to be stale in some obscure way and you're going to have to debug it, and chances are the client added some of their own plugins (if you allowed them) and they all interact in some wonky way leading to a cascade of bugs that only manifest in a perfect storm. Ugh.

(not trying to be snarky here... we're moving away from a LAMP stack just because after deployment it tends to be like 95% devops just to keep the website up and running as plugins get outdated and core deprecates things. It's a drain on dev time. Some Wordpress hosts use screenshot-based autoupdates and compare before & afters, and that helps, but isn't perfect.)