Flash Win11 iso on Mac

1.) Download the Win11 iso from Microsoft 
2.) While downloading, check the attachments and download WinDiskWriter for the processor your device has. Apple M chips are Apple Silicon, older Intel based MAcBooks are Intel!
3.) You might need to allow the app to run.
Open Settings > Privacy & Security > Scroll down until you see a message that an app was vblocked from running > Click allow > Confirm with your password > Run the app again
You should be seeing this: 
Choose the downloaded Windows iso file 
Select the USB drive you want to flash it on (careful, USB hard drives might be detected as wlel. Double check please!)
Use ExFAT as file system
Press Start
This will take a while then:
 
When everything's doe, you'll see this:
Safely eject the flash drive
Insert the flash drive to the target PC
Now, the next thing could be a bit tricky depending on the hardware manufacturer:
Boot into the BIOS (usually, one of the F keys or DEL on the keyboard. Check for the hardware manufacturer!)
Look where the boot evices are
Select the USB drive and hit enter
Now the Windows image should load after a while
If you see a "Press any key or to boot from CD or DVD..." prompt, press any key.