Upvote for mentioning WordStar. I only used it some in the Texas A&M computer lab. I went from my dad's Apple II, to a Commodore 64 I bought in college, to a Macintosh after I graduated. None of them were WordStar platforms, but I remember it was very popular in the CP/M and MS-DOS world before WordPerfect took over.
Yeah, my programming OS was CP/M
But that's for small editing tasks. For coding I use VSCode or a JetBrains product.