No.
The literature uses “Accurate GC”, “Precise GC”, and “Exact GC” interchangeably.
Famous paper on this that uses “accurate”: https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&d...
Paper that calls it “exact”: https://dl.acm.org/doi/10.1145/2660193.2660198