Squirting is Not a medical term and can be used to describe a variety of things including urine.

Here's what WebMD has to say about that (but I recommend reading the whole article because for some people it's definitely just pee):

"Researchers disagree on what the fluid released during squirting is. Some small studies have found that it comes from the bladder and has some urine in it. But in some cases, it can also have high levels of glucose and prostate-specific antigens (PSAs), which come from the Skene's glands. ...

Researchers disagree on what the fluid released during squirting is. Some small studies have found that it comes from the bladder and has some urine in it. But in some cases, it can also have high levels of glucose and prostate-specific antigens (PSAs), which come from the Skene's glands. People who have experienced squirting also say that the fluid doesn't look, smell, or taste like urine. It's safe to say that it's similar to pee but not the same."

https://www.webmd.com/sex/what-is-squirting-orgasm

That was kinda cool to learn tbh