It's worth noting that a legitimate end-of-support message was issued earlier this year, targeting users of Windows 11 22H2. Those still running this older version are strongly encouraged to upgrade, as they will no longer receive security or feature updates.
Microsoft has a notoriously poor track record with Windows updates. In this particular instance, no significant harm has been done, but it seems that every other month we hear about problematic updates introducing new bugs or crashes for users. As a result, it's generally advisable to take a more conservative approach to OS updates rather than immediately installing the latest ones.