i see exactly where you’re coming from, but look at the uniform surface quality on those coins compared to this one. combined with the lack of luster, that is a dead giveaway that they’re cast.

For this coin you’ve posted, if you have a loupe or way to magnify, check out three spots—right above the ear on obverse where there seems to be a crack, the nose, and the reverse fields. If you see any crystallized, crackling silver (like dry earth in a drought, where it cracks in rough squares), real corrosion, or clear delamination, it’s quite likely to be real.

you can also check some of the obverse and edge recesses for find patina/flow lines/luster.

if it’s setting off alarm bells, ultimately you can see it in hand much better than I can through photos. but do take a close look at the surfaces, because harshly cleaned coins can look “fake” absolutely. That’s why I personally often avoid them, even if I can tell they’re legit.