I have problems with my installation

I tried once Gutenberg and never look back. Now I see that in WordPress 5.0.
However, I use WordPress for a long time and this is literally worst update in history of WordPress.
So, please add option to switch to old editor. Because of this I really think about other CMS for a first time (and I will probably switch to CMS with normal and practical text editor).
About bugs…every single option is broken in editor. Specially when you edit text, add than remove block. Copy/paste is horror. Edit links not working and it took me 20 minutes to change the link. It failed so I need to use pure HTML editor.
When I upload file it does not show in popup window (media library). I need to manually find file and put link.
I really do not understand what is the point of Gutenberg. Nobody likes it.
In current state WordPress from one of the best CMS is now one of the worst.
To developers: where is your moto “keep it simple”.
I see poor joomla will again take the throne after looong time.