Even though Gary Illyes, a Google analyst, believes that serps could depend significantly less on hreflang and more on automatic language detection in the future, for now, the tag is our greatest guess.  It may also permit you to insert the default "x-default" tag for users from nations for which https://bookmarkgenious.com/story18903700/helping-the-others-realize-the-advantages-of-hreflang-canonical