Boot Camp 6.1 is strictly for Intel Macs . If you are using an Apple Silicon Mac (M1, M2, M3, or M4 chips), you cannot use Boot Camp; you must use virtualization software like Parallels Desktop or VMware Fusion.
The safest way to get the full feature set (drivers for trackpads, keyboards, and internal hardware) is through your Mac or existing Windows installation: bootcamp version 6.1 download
Open (found in Applications > Utilities ). Boot Camp 6