Certainly, this is the case among the advice requests that I receive on this web-site. In the wide open spaces, that wouldn't be a problem.
Many cats consider some, or all, of the house to be a territorial area of their own.
A new cat is taken into a stable feline household. Another cat from the neighbourhood gains entry to the house. The problem is also exacerbated in male cats by the presence nearby of a female in season. If you've already a household with a balanced, and happy collection of felines, think hard before introducing another. If you have a cat flap, and the problem is of visitors from the area, use an electronic cat flap, triggered by the cat's own collar, so only YOUR cats can use the flap.