I'm curious about the performance/success of remote-only on-boarding.

If I move to Wyoming, google can lower my salary by 25% because of "market" factors. However, can they replace someone on-boarded on-site for 5 years even at a "Mountain View" rate? I suspect it's a lot harder to integrate "covid" hires into company culture, group norms, and expected performance.

This would leave you with a more random process dependent on how good your interview process is at filtering, or how good your "online" training program is.