GM's senior leadership team (SLT) has gone back on their word several times over the past year.
A year and a half ago they said "work appropriately" (which allowed employees and their direct managers to choose when work at home or in office was needed) was here to stay. However, just a few months later, they started requiring us to be in office three days a week. Now, starting January, they are also mandating which of those three days we have to be in office. To make it worse, my whole team is in a different location, so I now have to come in office just to be on Teams calls all day...
Also, there have been multiple times this year the SLT said there would be no layoffs and then proceeded to do layoffs a month or two later. One of these layoffs included closing an entire IT center in Arizona with +900 people.
Through this all, SLT has not acted on feedback from employees or addressed our concerns. Work things the way they are, I would strongly recommend looking somewhere else for a job.