Invisible Unicode character that affects alphabetical sorting

Question

Is there an invisible (Unicode) character that affects the alphabetical sorting of list entries?

The general question of invisible characters has been addressed here before, and here is a list of invisible characters, most of which seem to be blanks of some kind.

I am looking for an invisible character which can be placed e.g. at the beginning or inside a filename, and then makes that file getting sorted alphabetically on top with respect to other filenames.

I should add that the character I'm looking for should be sorted before a normal SPACE character as well, for example when used in a file name that is sorted in places like Sharepoint, Teams and OneDrive in the browser.

Answer 1

U+0020 SPACE (" ") is invisible and sorts before all visible characters in most orderings. It's been used to order things to the start of lists for decades.