Fantastic guide. I had nearly no idea what I was doing before seeing this. Also, thanks for quickly moving through windows, links and typing quickly; I hate when tutorials waste your time like that.
When I download, it says: "You're about to upload 595964 bytes wirelessly. This could take some time, and you should consider uploading directly with a wire. [y/N]:" and it fails to upload. What to do?
This deals with hot/cold package downloading, and it happens when the library is not installed. Try reading it again and follow the instructions. It tells you "you should consider uploading directly with a wire"
If you want to use 6m drive on EZ Template you can set the ports of the left drive motors to {1, 2, 3} and the right drive motors to {4, 5, 6} and change the ports and reverse the motors so that they work with your robot
I had a similar issue, what I did was I clicked Uninstall PROS in the PROS menu in VSC, and then Installed it again. That seemed to work and it installed it with the toolchain!