I won’t argue with their reasons to move (which don’t stack up for me either but agree to disagree).
Have a look at https://service.polymech.info/user/cgo/pages/poolypress-cms, agentic CMS, translates, creates and manages articles with a few prompts, widget aware.
It was the last thing using MySQL, PHP, and Wordpress on my site. 3 big things to not have to keep up-to-date and secured. I can check in markdown to my repo, it builds the site, and Nginx serves it. So fast, and secure.
I also don't want to tie my site to disqus or other 3rd party cloud services and their implication on GDPR.
And running this opens you up to security issues you were trying to avoid by going the SSG route. In a way you could just keep WP, then.
(Also, WP has this beautiful ActivityPub plugin that makes your blog a fediverse account that people can subscribe to and even comment on your posts from Mastodon/Pleroma/etc.)