This is an age-old question with all sighthounds, and the answer isn't as simple as a "yes" or "no. Are the EverSage Silkens safe with cats? They must be, as we have a household of them. It helps that our cats are very confident with dogs- they run the roost and we encourage it. Pepper is the first to approach dogs and check them out and say hello. Natasha loves dogs more than other cats and will rub all over them.
That's what you want if you're cohabitating a sighthound and a cat. The cat needs to be over-confident and friendly, and the dog needs to respect the cat. Any fear from the cat, any fear running will scream "prey!" to a dog that's behavior is to chase a fleeing animal. The dog must see the cat as friend, not prey.
This is so clear in my dogs, and many other silkens (other sighthounds, too!), that they can differentiate an outdoor/feral cat (full of fear/running/acting 'sneaky') versus a confident house cat that seems equally a predator as them.
That's not to say that there isn't non-cat-safe Silken Windhounds. There has been stories of groups of silkens killing a house cat that they once got along with. Often what causes this is one dog is very prey driven, goes after the cat, and the others get excited and join in - they are a pack. It is not a malicious act, but purely instinct-based.
My dogs: I would trust alone in a room with my cats. Others? Not so sure. I had planned for ages that the dogs would ALWAYS be crated and never be allowed to be alone with the cats. I have found that none of mine have that drive, they respect the cats immeasurably, but it is always better to be safe than sorry.
Always use your best judgement!