Backlinks from social media

Hey all,

I am curious to know that if i am sharing my youtube video which has website url in the description, and share on other platforms such facebook, twitter, whatsapp. So does these social media link to my website. so does this will be counted in backlinks or not?

also when i am sharing my url to whatsapp to 1000 people, so does this counted as 1000 thousand backlinks to my website.

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