I work for a large company. Opposite of agile. A huge chunk of the people who work here are non-technical. Most machines are heavily locked down and users do not have permission to install their own applications. Upgrades (like changing versions of the browser) are rolled out from our Information Services department. I imagine there are many many "large corporate" environments around the world which have similar application policies to us.
The transition to IE 11 was was not all that smooth a large number of internal sites broke (including our intranet which runs Microsoft's own SharePoint product). Even today some months after upgrade some sites still behave oddly and you have to go through the enable/disable "Compatibility Mode" dance to get some sites to wok correctly.