As a long time and avid user of the old-school text editor system in WP and not a fan of the block system at all (though I do use some 3rd party block builders for certain tasks/pages/posts, but NEVER for frond end site building) I hate the idea of this madness taking over the admin.

The thought of them chaging the backend / admin to a frontend facing and dumbed down web 3.x style is concerning. The current admin while slightly clunk and at time overwealming to new users, is actually helpful and, once learned, very efficient at carrying out admin tasts.

Changes would add a new learning curve, hide commonly used functions behide mutiple clicks,a nd IMO less the usefullness of the admin.
If you want to do somthing, fix minor features we’ve been wanting in the current admin.. like letting us move around the menu headers/items as we need, dark and light modes, and so on..

I don’t need to see my site’s frontend when I’m updating or adding a new plugin, checking analytics or other daily admins tasks.. You also don’t build your site design every time you edit somthing (another reason I think the block etitor for front end design is stupid) Youbuild it once via template of the block editor and hopefully lock it down..

TLDR: This is a bad idea