I have had a lot of difficulty identifying matches, regardless of site.  That said, I do a surname search on my match list and go through all the surnames that I know are in the family - especially husband's of cousins surnames.  I have had more luck with distant cousins + surnames and trees than I have had with 3rd cousins and no trees or just a couple of people.  BTW I have one first cousin on Ancestry and NO second cousins, so I drop immediately to third to fourth.  A couple of people I recognized, but I have some fairly extensive tree depending on the line.
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Sarah L Meyer
Georgetown TX
ANK(I)ER, BIGOS, KARMELEK, PERLSTADT, STOKFISZ, SZPIL(T)BAUM, Poland
BIRGARDOVSKY, EDELBERG, HITE (CHAIT), PERCHIK Russia (southern Ukraine) and some Latvia or Lithuania
https://www.sarahsgenies.com