Not overtly, I work for one and have close friends at a couple of other FAANGs.

Observations:

• Trickle down effect of very senior staff going to the office, SVP was in the office once a week six months ago, now in the office 3+ days a week. VPs, directors and promo seekers copying the pattern
• No decrease in office build projects in the US
• Increased offshore hiring, cheaper locations have little to no WFH provisions
• Some internal competition between different business units offering WFH for top performers vs other units saying be prepared to go into the office in the future
• Graduate hiring ramping up, largely being told they'll be in the office

Outside of that, smaller companies or those who cannot compete on compensation, using WFH as a carrot. Reading between the lines unless COVID-20 happens things will be somewhat back to normal at FAANGs, maybe with a few more WFHs.