Data: Companies, Axios research; Note: Refers to overall policies, exceptions apply; Chart: Andrew Witherspoon/AxiosAmazon on Thursday said it was adjusting its policy on remote work, after earlier indicating it planned to return to an office-first culture as the pandemic eases. Under the new guidance, Amazon says most office workers will need to come in just three days per week, with further leniency possible.The big picture: Some tech companies, including Twitter and Square, are offering worke