Earlier quoted context omitted.
Win10 LTSB is free of the crapware.
Ostensibly. Given the nigh-malware-like tactics that W10 uses to work around those who try to disable some of that behavior, I'd be quite surprised if it was completely clean. And if that fails, it's till s a massive blob of closed source proprietary code at the end of the day. Your single option is to trust Microsoft.
I understood that LTSB was intended specifically for semi-critical/continous usage applications, like airport kiosks and the like.
To me, it would seem a bit irresposible to pollute LTSB with telemetry and cruft, when Microsoft knows full well that businesses bought that distribution for that specific guarantee.