I also don't support running windows 10 instead of Linux, but massgrave is very reputable and I'm pretty sure you can hash the ISO to be certain it's the same as an official windows LTSC release
If you have the official release why are you downloading it from a third party website. At best you are breaking Microsoft TOS which makes your company liable.
No-one directly suggested this was intended for a company deployment. If people want to break TOS in the privacy of their own homes then that's up to them.
Is IoT LTSC a viable replacement for a Pro install in a home enviroment? I do a lot of remote desktop work to access the machine. It's either that or Linux with Proton to emulate Windows must haves at home.