Something like that happened to Doordash a little over a year ago [1] [2]. Workers wanted to start a class action, Doordash used their arbitration clause to stop that. Over 5000 workers then asked for arbitration, which would have cost Doordash around $10 million in arbitration fees.

Doordash then tried to get a judge to make it a class action. The judge felt that this Doordash was in this mess due to their own hypocrisy and declined their request.

[1] https://www.theverge.com/2020/2/12/21135474/doordash-workers...

[2] https://www.courthousenews.com/doordash-ordered-to-pay-12m-t...