Wordpress doesn't actually require that much maintenance at all, I feel like this is a myth or because people have only dealt with very old Wordpress builds. Wordpress now has automatic updates built into it, and large agencies or companies automate updates otherwise.

I don't understand your certs expiring, etc comment. That is because of your host if anything, and even the worst host now offer with Cloudflare or Let's Encrypt.

I've never heard of Wordpress eating up disk space due to a log file, sounds fairly made up tbh. I've had a log file eat up disk space from a poorly built custom CMS though, because it presented so many errors in the Apache logs. Hosts now maintain and update the Linux/Windows distros fairly regularly, and even when I ran dev/web ops you could automate this type of thing easily.