Hello,
Thank you for posting in Q&A forum.
Yes, this is actually a known bug that occurred since the Windows 11 24H2 update. The "See more" menu is supposed to be opened below the button but it just appears at the top of the screen and is difficult to access.
Currently there's no exact fix in Windows patch hence as a workaround, please open File Explorer in window mode and spare enough space for the three dots menu.
To help other customers who may be facing the same issue, please don't forget to vote if the reply is helpful.
Best Regards
Zunhui