I think this was a pretty obvious end-goal when they required everyone to relocate back to Seattle and go in 3 days a week. As a tangent, everyone I know at Amazon is over-worked and stressed out. I legitimately don't know anyone whose happy there. How is that a sustainable corporate culture?
Take a look at the hiring market today. Not that many options.
It's scummy and imo represents bad leadership (a lot of the good Amazonians in mid-level management got poached during the pandemic which caused some internal degradation as their replacements were strong but not as experienced with 0-to-1 + ), but there really aren't many other options that can pay Amazon level.
Hybrid (2-3 days in the office) solves most of your communication needs at the leadership level. 5 days is just too much.
+ A lot of the all-star PM and Eng leadership I knew of at AWS were poached during the pandemic to leadership or leadership track positions at plenty of companies (eg. Datadog, Felicis, Google, etc)