Interesting! I used Ledger Live last night and didn't notice and new notifications that could hint that there is a new update available. Usually, the notifications area shows an unread message that would trigger you to click on it.
Perhaps the situation is the same as in the case of firmware update, which means that Ledger Live does not show such a message to everyone at the same time - because it prevents server overload, and also in case the update causes some problems, only part of the users will be affected. If memory serves me well, something similar happened with previous versions of Ledger Live for Windows OS.
Also a little warning that the update can cause problems in some cases - nothing serious that affects security, but you may need to reset LL and re-add your crypto accounts.
LedgerSupport_Muto
Ledger Support
Updates might cause portability issues in some rare occasions. It might be your case. You can reset Ledger Live, create a new password, and re-add your accounts to solve this.