Redesigning just because is a terrible idea. WP Admin works very well for me. Redesigning it to make it work better is good. Redesigning it just to make it pretty is a waste of time. WP Admin needs to be functional and easy to use. And please don’t force dark mode onto those of us who can’t read white text on black backgrounds. For some of us it strains our eyes and gives us headaches. If something works well, there is no need to change it. If it isn’t broken don’t fix it is always true. And the other rule to follow is to keep it simple. And don’t put twenty year olds in charge of this. You need seasoned old programmers in their 50s, 60s, and 70s, who have decades of wisdom to know not to add fluff to an area that needs to function. Young programmers are too captivated by shiny things and ignore the serious things that need to be done.