Where window.LOCALE is set in Magento 2 code

Which part of code in Magento 2.4.5-p1 sets window.LOCALE ?

vendor/magento/module-catalog/view/base/web/js/price-utils.js defaults to en-US as in locale = window.LOCALE || 'en-US'; where window.LOCALE is my case is undefined.

But I see in Magento 2.4.5-p1 default installation that window.LOCALE is set to (e.g. fr-FR) what it seems I’ve configured in Admin > Stores > Configuration > General > Locale Options > Locale (fr_FR).