Earlier this month, Google that Chrome would move into this cycle with Chrome 94 (which is expected to drop in Q3) as part of an effort to release new features faster. For now, stable versions of Chrome appear every six weeks or so. Chrome and Edge are both , so it makes sense that Microsoft is adopting the same schedule.
Microsoft that the four week cycle may not be ideal for everyone. Enterprise customers will have an extended stability option, whereby Microsoft will roll out major Edge updates every eight weeks. It will still provide security updates every two weeks for those who choose this option. Google will offer a similar Extended Stable option to its business customers.
The next schedule change will bring Edge and Chrome in line with Firefox. This browser adopted a four-week release cycle in early 2020.