Does WP engine add any extra files on our wordpress file that comes bundled when downloading?

Does the WP engine add any extra files on our wordpress installation?

[This post is not about the hosting of, but about what extra files/data may have been added to the wordpress website download.] (there is a youtube video from a few years ago that mentions something about added files)

So, the new hosting provider downloaded a copy of our site, then unzipped it to install it in the new plan which has a cpanel, obviously wp engine doesn't have a compatible system.

Could it be a simple reset file permissions thing? Or just simply delete any extra files and folders wp engine may have added due to their own systems?

Do they add extra files to wordpress websites that come bundled when downloading?

Anyone have any experience with changing any modified wordpress data to make it more compatible with a regular cpanel install?

Appreciate any comments