That's what I was going to say! It's very like when Steve Jobs started NeXt in the 80s, and Apple sued claiming theft of intellectual property and poaching of key staff.

In my opinion the Apple claims had no merit, particularly in California, but Apple still managed to get a settlement that put a lot of limitations on NeXt.

NeXt had to show Apple their prototypes before release, were not allowed to ship a computer before July 1, 1987, and were only allowed to make high-end machines, not compete in the consumer market. They also had to agree not to hire any more Apple employees.

https://www.nytimes.com/1986/01/18/business/steven-jobs-sett...