From my DS1054Z that I bought in December 2019 (from a larger official dealer for measurement technology here in the country)
all options were enabled, but of course not the 100 MHz.
All other options are officially preinstalled or activated on the dealer's website.
Since the original box was not opened, I can only assume that Rigol had already delivered it to this dealer "so".
Since Rigol also sells a DS1104Z and this is more expensive, I cannot imagine that this option can ever be made legal by a dealer.