Virtual Machine
Setting up a virtual machine to run Ubuntu 20.04 on your windows or mac laptop is one possibility if you are having trouble installing ROS2 on your laptop.
Download and install Virtual Box
Create a new virtual machine and running Ubuntu Desktop 20.04 LTS by following these directions
Install ROS2 Foxy according to the linux install documentation
Warning
USB passthrough for camera data or joystick data is tricky to get working with virtual box but the intro projects have been designed to not require either