[somethingnot]

In the last two companies I worked in it was us low level employees which were begging IT for Slack, until they reluctantly accepted (because of costs and of fears about hosting confidential chats on 3rd parties). Nobody was begging for LimeChat or IRC.

And what about Discord? It's almost exclusively used by people in their homes, there is no company pushing it down their throats.

[snazz]

There are network effects outside of companies "pushing [software] down [employees'] throats." Consider, for instance, that large groups of gamers already use Discord?