The IO_REPARSE_TAG_APPEXECLINK was introduced for aliases to installed UWP apps that require activation before they can be executed.
Currently these are in an unusual place as far as Python support goes - stat() fails where lstat() succeeds, but the lstat() result doesn't have the right flags to make is_link() return True.
It's not clear whether we *should* treat these as regular symlinks, given there are a number of practical differences, but since we can enable it I'm going to post a PR anyway.