There are probably two different questions actually. (1) Where do users expect that feature to be and (2) where would the feature perform best in normal use. It might be that (1) is different from (2), but you'd probably need to explore that in a live split test.
To answer the first question in a usability test, you could ask the participant to find details ...
Reference this post - https://webmasters.stackexchange.com/questions/58458/how-can-i-add-use-meta-description-and-meta-keyword-tags-on-a-multi-lingual-webs
From a usability perspective, make sure your meta keywords are in the language the user is expecting. Otherwise, similar to users seeing the wrong language, screen readers will read the wrong language to ...
What's the value for the user of having a Dark Theme UI?
There is not much value when it comes to user performance.
Great article talking users performing better not using dark mode
Dark mode isnt as helpful for eye strain as one might think
Improved battery life on some screens
Throwing off less ambient light in low light settings (dark movie ...