I feel like it might just be that we don't offer the same level of care to animals than women but yes, also getting spayed or fixed likely decreases the likelyhood of issues the gynocologist checks for. Depends on how they fix the animal; removing the uterus for example, would probably decrease issues later but I imagine tieing the tubes would help less so.

In older women, removing the uterus stops periods and a bunch of other things I have heard.

Spaying prevents a lot of later life gynecological issues in dogs and cats

https://www.dogster.com/dog-health-care/unspayed-female-dog-problems/ If you don't spay they recommend regular checks.

https://tica.org/blogs/the-risks-of-not-spaying-neutering-your-cat-what-you-need-to-know/

Going in is a check for cancers and STDs. STDs because they can lead to cancers. Like HPV. Herpes is another one. Both can be carried around asymptomaticly. Men, more so, with HPV. There’s a threat to both health and fertility here, hence the concern.

By the numbers, less sex, less gyn visits are necessary. Post menopausal? You go only if you notice a problem.

So you have a cat. She’s spayed, lives with another spayed cat, and both are indoors only. Even as a human she wouldn’t be making those visits. That and preserving cat fertility isn’t a big concern.

Don't know about you but I don't take my male pets for checkups either.

I'll assume that by "spayed" you mean getting the tubes tied. But we don't use that word for humans, so please don't go around saying women are spayed.

Tube tying only prevents pregnancy. It does not prevent any other problems like cancer, cysts, infections, or endocrine-related issues. Removing organs can cause hormonal issues, and generally there will be more side effects from removing the ovaries than the uterus.

Lots of women don't need to see a gyno that regularly, but doctors have decided that's the best way to collectively prevent certain types of cancer. We're not as worried about cancer in pets, because they don't live nearly as long as humans.