Greasy Fork is available in English.
When you open the site https://(arena/chat).lmsys.org/ goes to the "Direct Chat" tab makes the model selection blocks, the chat window and the query input block fixed above all other elements.
I don't have any errors.
How do you want it?
Getting these warning when about to install script on greasemonkey
Bad pattern: missing "/" for path in *://chat.lmsys.org
Bad pattern: missing "/" for path in *://arena.lmsys.org