Mac users who want to run Windows on their Macs have been able to do so since the arrival of the Intel processors in Macs back in 2006. Back then it was easy to use Apple’s own Boot Camp software to boot a Mac up into Windows, at which point your Mac could run Windows apps as if it was a PC (more or less). Additionally, solutions like Parallels Desktop and VMware Fusion allowed Macs to run Windows and Windows apps side-by-side with the macOS and Mac apps.
However, in 2020 Apple started to transition from Intel processors to its own Apple Silicon processors. Now every Mac Apple sells uses one of its own M-series processors, which provide much better performance than the old Intel processors. Apple’s new processors are based on ARM technology, rather than Intel’s X-86 architecture though, and, as a result, these new Macs can’t use Boot Camp to run Windows. They can still install Windows using virtualization technology, however.
Read more at Macworld.com