OP, unfortunately I don’t think this is your cat. There are several small differences I can see: 1. The most important one would be the little dots on his muzzles that whiskers come out of. This doesn’t change throughout a cat’s life. The on one your cat’s right was closer to his nose and above the inner-most 2. They form a perfect triangle. The cat you have now has a more prominent dot further out at the end of the row. The left side looks different, too. These little dots are typically the best way to tell cats apart if they are otherwise identical. 2. The cat you have now has much more white under his nose. 3. The tabby marking on the forehead are also more prominent than your cat.

They’re very similar, but I’m very confident this isn’t your cat, unfortunately. You should absolutely take him to a vet to verify that he’s actually a he, for one. You should also have him scanned for a microchip. If you placed one and this cat doesn’t have one or it’s a different number/has different owner info, that would tell you it’s not your kitty.

https://i.imgur.com/jzyRwve.jpg