LTSC: What is it, and when should it be used?

Yes, most changes on paper sound cool for IT enthusiasts, but not so interesting for end users, who maybe just work with a few spreadsheets and docs and not so into technology. They don't care about timeline, or doing screenshots with new app or connecting their phones to PC, etc. Main reason for IT to install it is to keep up to date, to have monthly cumulative updates weight less and to get IT updates like better Autopilot support and new policies, etc.