Er. How many of them are H-1Bs?
Per US. Citizenship and Immigration Services, around 300 employees at Twitter are working under the H-1B visa. My note: I am aware of someone at Meta attempting to reach out to these folks to interview for offers to transfer their visas. Very kind of folks willing to do so. Source: https://www.uscis.gov/tools/reports-and-studies/h-1b-employe...
Meta is firing 11K people and freezing hiring right now.
https://www.cnbc.com/2022/11/09/meta-to-lay-off-more-than-11...
Twitter will bounce back. For the people who are staying, this is a giant career opportunity to get a good executive job as the result. I'd stay in a heartbeat, even if it means spending one terrible year or two there.