100% CPU usage after updating my laptop which causes my laptop to freeze

I know, but a live environment isn’t a chroot environment. You use the live environment to enter the chroot environment, but the live environment is not the chroot environment.

And apologies, I wasn’t specific enough. Those output need to be from the chroot environment. I don’t think, however, you know how to enter one, and that’s OK I didn’t either, not all that long ago.

So, enter a chroot environment:

How to chroot

  1. Ensure you’ve got a relatively new ISO or at least one with a still supported LTS kernel.

  2. Write/copy/dd the ISO to a USB thumb drive.

  3. When done, boot with the above mentioned USB thumb drive into the live environment.

  4. Once booted, open a terminal and enter the following command to enter the chroot encironment:

manjaro-chroot -a
  1. If you have more than one Linux installation, select the correct one to use from the list provided.

When done, you should now be in the chroot environment.

But, be careful, as you’re now in an actual root environment on your computer, so any changes you make will persist after a restart.

From there, run the following, as described above, and provide the outputs please:

ls /home/<username>/.config/autostart

Where, you guessed it, <username> is your normal username.

And

systemctl list-units

And

systemctl --user list-units