I think effectively for every other manufacturer modules are always 'original manufacturer' (unless you count the b-company)
apart from the b-company's intellijel quad vca clone, I think the only other brand where clones of 'in production' modules are available is mutable - there were a few pcb/panel sets going round a while back for 4ms SWN, but other than that I know of nothing
the purpose of the open-sourcing of the mutable modules was for educational purposes - ie how to design modules with SM32 mcus/2164 opamps etc etc - and so that anyone who wanted to build one themselves could - NOT so that micro versions could be cloned
reputedly a lot of the builds are decent quality - pachinko seems to be a decent implementation of marbles, if you desperately want to shave off 2hp or whatever...
as I said before the difference in price is in most cases not that much and the usual reduction in size can make the modules difficult (or unpleasant) to use in some cases - tightly packed jacks and trimmers, especially when next to other similar modules etc etc - if you buy a real one then Emilie actually gets paid
I had a button break on my marbles and had to send it back to mutable - fixed free of charge and back within a week (NL -> FR -> NL) - I have mostly factory built and a few DIY mutable modules - if I decide I need any more I will definitely buy them!
supercell looks like a good implementation of clouds though
"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia
Utility modules are the dull polish that makes the shiny modules actually shine!!!
sound sources < sound modifiers < modulation sources < utilities