def METHOD_NAME(self):
    possible_prefixes = [
        os.path.expanduser("~/.wine"),
        os.path.expanduser("~/Games/epic-games-store"),
    ]
    prefixes = []
    for prefix in possible_prefixes:
        if os.path.exists(os.path.join(prefix, self.egl_appdata)):
            prefixes.append(prefix)
    return prefixes