The actual press release with a link to the complaint.

https://www.uschamber.com/workforce/u-s-chamber-files-lawsui...

They've not yet clarified whether the visa fee is applicable to a change of status from within the U.S. which is used by people on other non-immigrant visas. The most common one being the student pathway transitioning from an F-1 visa after graduating.

I suppose that means the U.S. Chamber of Commerce is now designated "radical left communist antifa terrorist organization".