file creation date on Unix platforms

[slmeyer]

I am reading about the great work being done on rustic and considering using it. However I read:
"Note that rustic does not back up some metadata associated with files. Of particular note are::
file creation date on Unix platforms"
Does this mean I lose the ability to see at what date and time a given file has been created?
This is sometimes important information for me.
If yes, are there any ways to get it recorded anyways?

Thanks