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Jack Dorsey, who stepped down as Twitter CEO late last year, has publicly supported Musk's efforts to take over the social media company.
If you're bored of TikTok, you have the option to start fresh all over again.
Musk became one of Twitter's largest shareholders in April but didn't disclose his stake on time.
Sandberg has been at Meta, formerly known as Facebook, for 14 years.
Following Meta's blocked acquisition of the gif database, a UK judge rejected a competition watchdog's demand that the company sell Giphy.