If your laptop and phone both got stolen – how easily could you conduct online life through the worst browser you have? If you have to file an insurance claim online – will you get sent a simple HTML form to fill in, or a DOCX which won’t render?
What vital information or services are forbidden to you due to being trapped in PDFs or horrendously complicated web sites?
Are you developing public services? Or a system that people might access when they’re in desperate need of help? Plain HTML works.
You may or may not have noticed that I changed the design of this site last night after 4 years of having the old one. I used to strive for aesthetically pleasing themes until I realised just how much data they used and how slow they were (thanks Lighthouse). There are probably “cleaner” themes than this one and it’s still a work in progress but HTML and readability will always be my priority.