How Can I Export To Win10 From Manjaro Linux?

I'm trying to export my unity game but I can't even export it to Linux. Unity hub says that WebGL and Linux modules are installed. And When when i try to add windows module too, it doesn't work.

then when I click on 'DONE', it looks like it's installing the windows module, but it still doesn't work.

Also when I try to export the project, I only have Linux in the drop down menu.

Then when I click on on 'Build', and I choose a path, the 'Save' button is grayed out so I can't click on it.

(Check the replies to see the last image)