Remote work seemed to be declining in the Bay Area pre-pandemic. My company and many others were pushing for more in-office work over remote work as they felt that employees were able to be more creative and productive if they were able to collaborate spontaneously which in their eyes could only happen if everyone was in the office. This really seemed to take off in the area after Yahoo had implemented their no remote work policy.
if course it declines in the Bay Area, a place that people famously move into for work. It'd be silly to move to the Bay only to then work in a shitty rental appartment.