Problem:
The client was trying to disable the "Current language" option in the language switcher settings, but the option was disabled.
Solution:
Yes, it's expected behavior when you choose the Dropdown option from the Language menu items style section then you can’t disable the Current Language option as it is necessary to build the dropdown language switcher.
If you want to disable the Current language option then please select the List of languages option instead of Dropdown as you can see in the attached screenshot.
