On windows 11,
the default package that gets installed may have issues or is not complete.
It is recommend that you reinstall the language supplemental font package.
in the Setting program search 'Features'
go to optional features.
if supplementals fonts have been installed, remove and reinstall them.
to install click on the view features
select both simplified and traditional.
the installation is slow, please wait.
verify the size of the pack. if it does not match my screenshot, remove and install again.
*Important
after it completes installation you need to restart windows.
if you do not restart windows it will use the old versions of the fonts and the issue will still be there.
after restarting you can go back an look at your document the fonts will have the proper spacing.