This was done back in 2020, but it may help, or help explain to those wishing to try to mimic the old classic editor. Check out this link.
Hopefully it will help those that want to continue with the classic editor. I have about resigned myself to the Gutenbug (pun intended) block editor. I find navigating it not nearly as challenging as in the early adoption of it. However, I am still vexed by the constant shifting of blocks, and having to hunt them down when they should by all logic, be at the ready if I used them last. Maybe it’s a cookie setting, but I’ve had no problems of that sort a few updates ago.
Take a look at the post, it may be outdated by now, we all know how fast they change plans and minds. Let me know if it helped you at all, or if you found it is dated already.