It does not. The latest Manjaro ISO comes with Linux 6.6 so the ISO you are using is an old ISO.
ISO was build December 14. and refreshed on December 15. 2023.
You can get a new ISO by
- downloading from manjaro.org
- using the package manjaro-iso-dowloader
- using [root tip] [Utility Script] Using python to download and verify a Manjaro ISO
This is mirror / metadata related
Please run
sudo pacman-mirrors --continent
sudo pacman -Syu
mhwd-kernel -i linux66