By bizn_fun 
Exactly what changes US users will see to their TikTok app and feeds, as a result of the deal, remains unclear.
The BBC has asked TikTok what will change in its American experience, and when.
But we know its recommendation algorithm will be retrained on US user data – sparking concern for some over whether highly personalised content it serves could change.
Enberg says algorithm tweaks could affect what people see or even create, potentially “leading to a different look and feel” for US users.
Dr Kokil Jaidka of the National University of Singapore previously said while the app is “unlikely to suddenly feel different” for most, “changes are plausible”.
Differences that do appear to US users are likely to be “subtle and gradual” – such as weaker personalisation.
But locally-controlled, user-facing features such as TikTok’s short videos, influencer culture and livestream shopping may not change, she said.
“There is a big incentive here to keep what works,” social media expert Matt Navarra told the BBC.
He said changes to an algorithm can bring “short-term tuning issues” such as less reach, repetitive content or random recommendations, and TikTok would want to maintain its algorithm as its “crown jewel”.
“What’s important here is you’re still using the same app, the same account and broadly the same recommendation engine,” he said
“I think the goal is continuity not reinvention.”