>If you mean over IE11, that's probably a (dumb, unhealthy) Group Policy decision of your Enterprise as Edge has been the default browser in Windows 10 since launch.
LTSC/LTSB versions of Windows 10 (i.e. the ones that enterprises are supposed to use) don't have Edge and there's no way to install it. The same goes for Windows Server 2016 and 2019.
Enterprises are not supposed to use LTSC/LTSB builds as daily machines; those are intended for critical services and embedded systems. Microsoft keeps saying that in their documentation. Businesses should use the Current Branch for Business and stop shooting themselves so much in the feet with Windows updates.
LTSC/LTSB versions of Windows 10 (i.e. the ones that enterprises are supposed to use) don't have Edge and there's no way to install it. The same goes for Windows Server 2016 and 2019.