For me specifically (though I don't use it for YouTube) the work apps I'm required to use are codes for a chromium browser and the IT department doesn't want us downloading anything to the work units. So I either have to use edge or chrome (both of which are provided). If the work apps don't work with one we're instructed to switch to the other and so on. When I was in the military we were told to use Internet explorer and a lot of websites made for the military didn't work without it. This is a legitimate thing.