Don’t worry. That option was there as well.

However, depending on the website it may require your watch history before allowing you to login.

It reminds of this:

There were more options on the website, but I forgot the name of the website, and I cannot find it now… :(

I though so as well. However, I don’t even see anything similar to disabling (USB) devices like in Windows.

I have the keyboard plugged into a monitor and accessing the USB hub is seriously complicated, so that’s not really an option for me.

But I could try locking the system. I just hope I won’t lock myself out for few hours, because I have pressed Enter multiple times while cleaning it.

It would be nice if there was a button or some app that could temporarily disable the keyboard, so it could be cleaned without accidentally changing settings for a running app, writing your boss you are not coming to work on Monday, firing few nukes, or wiping your whole system.

On my Fedora system (KDE) I have unified all unused and pointless folders (Documents, Pictures, Public, Templates) into a single folder called Unspecified with a trash icon. You could probably do that as well.