Yup, the article is a guide for using SEDs with LUKS now that cryptsetup has support to make it easy.

Look for displays that are meant for always-on signage or ads. The quality can be somewhat lower in terms of picture quality, but you won't have any smart features and they're likely to last longer than other displays.

My blog where I talk about computer things https://alexdelorenzo.dev

Currently working on https://cast.firstbyte.dev