LattePanda 3 Delta 864 OS Questions

I was not familiar with Windows 10 Enterprise and searched for anything I could find about the OS.  I have a few questions based on what I was able to find.  Thanks!

1) The Windows 10 Enterprise OS, offered with the LattePanda 3 Delta 864, appears to be Windows 10 ioT Enterprise.  Is this correct?  If not, how is it different?

2) I know Windows 10 Enterprise comes preinstalled but must be activated.  If I purchase the system with Windows 10 Enterprise activation is there an ISO, that is offered via digital download, that can be used for a later clean install of the OS?

3) Once activated will Windows 10 Enterprise be able to take advantage of the free upgrade to Windows 11 Enterprise?  If so, is there an ISO that can downloaded for performing a clean install of Windows 11 Enterprise?