>>17106658no, they released the source code for an alternative, open, kernel module for supporting, officially, Turing and newer graphics cards
much of the driver is userspace, which is normal for graphics drivers
userspace is still closed unless you opt for the very bad Nouveau Mesa driver which hardly works and has yet to implement reclocking on modern parts
the open kernel module still lacks that support as well from what I can tell, it's still up to Nvidia to make Nouveau work properly