Back when we upgraded from Win 7 to 10, we installed Win 10 Pro and ran it for testing. Pro was loaded with games and I looked at switching us to a Linux distro. I found an ISO of LTSB 2015 and tried that. It was great. LTSC has no games, uninstallable Edge and either 5 (LTSC) or 10 (IOT LTSC) years of support and most importantly for us, feature updates when we want them, not when MS wants them. For us, it's perfect.
Yes, we activate 26100 with mas hwid. Towards the end of the year, they'll be online key sellers with $5 MS keys for Win 11 IOT LTSC and we'll get those.
Jim