The files you mentioned, such as ".user.ini.09142022073822", ".user.ini.09142022073830", and ".user.ini.09142022073923", seem to be user.ini files with timestamps appended to their names.
In Joomla, the user.ini file is used to customize PHP settings specifically for your Joomla site. It allows you to override certain PHP configurations without directly modifying the server's php.ini file. The ".user.ini" file is typically placed in the root directory of your Joomla installation, and it affects the PHP settings for that particular Joomla site.
The additional files you mentioned, with the appended timestamps, appear to be backups or previous versions of the user.ini file. The timestamps indicate the date and time when these files were created or modified.
It's common to have multiple versions or backups of the user.ini file, especially if changes were made over time or if the file was automatically backed up during updates or system processes. However, it's important to note that without further information or examining the file contents, it's difficult to provide more specific details about these files.