Is there even another attempt to compare to?
There likely is an end-to-end, unsupported record by a hiker but Charlotte wasn't aware of it. This may establish a new type of FKT for the Bruce Trail. For comparison, this took about 3.5 days longer than the supported female FKT.
Charlotte set the overall Bruce Trail FKT in 2010, then continued to hold the female record for a few years after Cody Gillies set a new overall FKT. Last fall Virginia Gingras set a new female record about 4 hrs faster than Charlotte's time.