Windows 11 language bar "docked in the taskbar" greyed out

this answer is the only one that worked finally for me...thanks

This was the only solution that worked for me. Thank you. No other method worked. I can't believe microsoft made this soooooo difficult.

But docked in the taskebar still gray.

There are two types of language bars - one coming from the Windows XP generation, the other introduced in Windows 10. The "desktop language bar" from XP is the older one. In Windows 10, the user can select either of them and both can sit in the taskbar properly or in other words "docked in the Taskbar". In Windows 11, the older one can not be docked as the option is greyed out as mentioned by Redhonker.

Now you may raise the question "Why do you need the older one when a newer one is there? And the reason is - in the older one - we can see and use additional functions attached to a particular keyboard if we check the option "show additional language bar icons in the taskbar" which are useful for us.

Solution for me was:

It turned out, for some unknow reasons (not only the language bar but also) the keyboard layouts from other languages went missing. By adding them back it restored my original setup. For example, under the German and Hungarian language there was no keyboard layout visible.

With disabling the "Use the desktop language bar when it's available" option on "Time & language / Language & region / Typing / Advance keyboard settings" the language bar is shown again.

This solution worked for me. Specifically the underlined part.