Outside of a life-altering sickness I see no way for someone who had worked for a top-tier tech company to go without employment opportunities for half a year, let alone two years.
I think a lot of people forget what it was like during the last tech downturn, or the previous one, or the previous one... or they’re too young to have lived through them. I remember being a month from total bankruptcy, 12 months into a job search, and I had a decade of experience at the time. Almost nobody was hiring. If you haven’t been through it you have no idea. Fund that emergency fund, people!! Minimum 6 months but 2 years is much better.