100% agree with you that there's a lot of improvements to be done for a lot of the software we developers use on a daily basis. It's the term DX / Developer Experience in itself I dislike strongly. My sibling poster @swyx did a great job explaing my main gripe with using abbreviations like this.

I also hadn't had any coffee in way too long, so I have to admit I was a bit grumpy at the time of writing the comment :)