She then worked in trust and investment services at a bank, where she was fired after her boss discovered the kombucha video and determined that Tomlinson's viral fame would put the company at risk.

[11][9] She subsequently posted her most viral video, wherein she tastes cream soda-flavored kombucha for the first time with rapidly changing facial expressions, in August 2019.

[15] Following the success of the kombucha video, Tomlinson was signed to Influences Management and later to United Talent Agency.

[9] In December 2019, Tomlinson moved to Los Angeles with fellow TikToker Sarah Schauer and the two began making YouTube videos together.

[21] She co-hosted the TikTok New Year's Eve Party live event with American rapper Lil Yachty in December 2020.

[24] Tomlinson's collaborative, Studio71-produced podcast with Schauer about Internet oddities, Violating Community Guidelines, premiered in January 2022.

[38] Today's Kristian Burt wrote in 2023 that Tomlinson had "conquer[ed] the land of TikTok in a matter of years" and that she had created a "Gen-Z media empire".

[28] In 2020, Tomlinson faced backlash after referring to phrases attributed to African-American Vernacular English as "internet culture".

[39][40] In November 2023, a video from her "Close Friends" story on Instagram leaked of her expressing frustration toward being expected to discuss the Israeli–Palestinian conflict during the 2023 Israel–Hamas war on The Broski Report.