I do believe that 34% of polled workers said they would quit rather than return to the office, but I do not believe even a majority of them would actually go follow through on that threat. Especially if you filter out high paid/high job-security developers and similar people who might have the financial security to do so.
People, particularly Americans, are shackled to their jobs for many reasons and most people are risk-averse.
Despite myself being pro-remote, I think that we will see a sizable return to office-centric work culture over the next few years. The office may (hopefully) end up looking or feeling a bit different as an outcome. All the stories about the "end of the office" are overblown.
Once it again becomes beneficial for your career and/or social life to participate in office culture people will come crawling back. Not saying it's a good thing, but it's what will happen.