From the article:
Since the first Starbucks store voted to unionize in late 2022, nearly 300 Starbucks stores have taken that step, although none has yet negotiated a collective-bargaining contract and the company has closed some pro-union stores. Judges have ruled that Starbucks repeatedly broke labor laws, including by firing workers, interrogating them, threatening to rescind benefits if employees organized and threatening to call the police on a worker, according to a spokesperson from the National Labor Relations Board.
...A judge found that Starbucks engaged in "egregious and widespread misconduct demonstrating a general disregard for the employees' fundamental rights," ordering Schultz to personally read the employees a recitation of their rights under the law. The company has faced more than 500 complaints of unfair labor practices filed by workers and labor officials, according to the NLRB.
https://www.msn.com/en-us/money/companies/starbucks-howard-schultz-to-face-lawmakers-over-alleged-union-busting/ar-AA19cfYz