Yes, people with all cervical heights can use a cup. It sits lower in the vaginal canal, similar to a tampon. If you have a low cervix, a shorter cup with a shorter stem may feel more comfortable and easier to remove. With a high cervix, a longer cup or one with a longer stem can help with reach. Like with most reusable options, it may take a little trial and error to find the best fit for your body.
For a comparison of cup measurements, you can visit https://putacupinit.com/chart/.