Is ESRI's ArcGIS platform of programs available on Ubuntu? I love open source and if I could I would love to try and migrate to this open source OS.
Right now, only the backend software is available for Ubuntu (ArcServer, ArcSDK). This is because many enterprise-level companies run Ubuntu, SUSE, or other Linux servers and Windows workstations. However, ArcGIS is not the only fish in the sea. Using free and open-source software, you can do almost everything that ArcGIS can, and a number of things that it can't. If you already know how to use ArcMap, the learning curve going to QGIS or others is a lot less steep than you might expect.
I personally use an open source software stack on Ubuntu for a lot of my work. Once I have time to learn the Python syntax for QGIS (PyQGIS), I may leave ArcMap behind.
ArcGIS Desktop is not currently available on Linux systems, but you can install ArcGIS Enterprise for Linux. : [the installation guide]http://enterprise.arcgis.com/fr/server/latest/install/linux/welcome-to-the-arcgis-for-server-install-guide.htm
Server yes, Desktop No. If you use cloud builder on AWS and choose the Linux install it will install on Ubuntu, using wine. Strangely Ubuntu is not supported by esri on a standard install. You can manually do the install on Ubuntu but you will have to work around some errors, it will work but you won't get support. You other option is rhel which is supported up to v7.