They made a big, internal to-do of "commitment" to London for WhatsApp. Maybe it's still true.
They still act like they're swimming in billions upon billions, frittering $10's of said billions a year on GPUs and datacenter buildouts without a specific purpose or need, while simultaneously cutting back on perks, making the work environment more worker-hostile, eliminating fixed desk assignments, closing eateries, RTO, and doing layoffs.