Update:
A Microsoft spokesperson provided a statement on the ongoing negotiations.
"Our quality assurance team is an integral part of our business and is key to our ability to deliver games our players will love. We respect the team's right to express their viewpoints and are deeply committed to reaching a fair and equitable resolution that acknowledges the teams' contributions. There has been substantial progress over the course of the negotiations, reaching tentative agreements on a majority of the topics at the table. We have presented a package proposal that we believe is fair -- if accepted it would result in immediate compensation increases, even more robust benefits and is in alignment to the company’s hybrid model of 3 days in office. We look forward to continuing this progress during negotiations.”
