She does look in good condition & well fed.
I had a "found" cat once & he was so friendly & in such good condition I
KNEW someone was looking for him, we have to keep them for 2 weeks before we can "do anything" (by that I mean neuter etc) with them & rehome them. His 2 weeks were up & I pleaded with the rehoming officer for 1 more newspaper ad, I just knew he was lost. Luckily someone spotted the ad, told their neighbour, they called me & he was their cat.
I had a funny feeling he was half siamese as he used to talk & acted more like a dog than a cat. Sure enough he was theirs & he was half siamese, they had his sister too.
Turns out he was such a nosy, friendly boy - he had just followed someone home & into their house.