[JonChesterfield]

I believe the IC's in the US on visas are very concerned about the risk of being fired and suddenly needing to find a new visa in a matter of weeks while most hiring cycles take months.

I don't think I've seen anyone else worry about performance reviews. I assume this is why the US visa system is structured like this.

[websap]

Untrue. Most of my friends at Meta visa or not, are under continuous stress of showing impact.