It’s not a big deal, some people say they live longer when spayed but idk how true that is

Our rescue was spayed relatively later in life around 4-5 and the procedure is a bit harder on them when they’re older. Our dog had a slightly rough time with it for a few days after the procedure, (couldn’t get comfortable and whimpered a bit)

If they ever do go through with it just make sure they get her some pain pills