I've been using LTSC/LTSB for years. What's wrong with it?
Sure, it's Windows 10 without any of the cruft—but also, none of the good bits. Believe it or not, but the Windows Store is great; managed updates of everything from Slack to Spotify, without individual updater components. Photos app, with support for HEIC files and so on, built in. These things are actually useful!
The complaints seem to come from heavily technical folks that think LTSB branches are reasonable things for normal people to run. I wouldn't want to run one on my own machine.