It is currently not possible to use RealityCapture with Linux, but there is a way to use it if you have Mac.
If you are using MacBook or other compatible Mac OS device you can install RealityCapture with Boot Camp.
Boot Camp is a utility that comes with your Mac and lets you switch between macOS and Windows. Download your copy of Windows 10, then let Boot Camp Assistant walk you through the installation steps. You can read more about Boot Camp here: https://support.apple.com/boot-camp.
Then just boot into Windows 10 using Boot Camp, download RealityCapture from our website and install it on the Windows partition.