I think we will just have to beg to differ.
TBH the experts are also not that much wiser and this subject has been debated for many moons and still polarises opinion amongst the medical profession and researchers ... will likely always be inconclusive?
My personal experience would support this view.
Exactly and therein lies the problem.
At the risk of sounding even sadder than I normally do, I've done my own personal experiments with 'taste' and colour tests and full bladder/empty bladder scenarios and I'm still unsure with regard to composition? It is not just urine though. I obviously don't have the benefit of laboratory analysis of samples
However in general terms a full bladder is to be avoided as there is a higher probability of increased urine content.
Porn has a lot to answer for both in terms of faking (including just out and out urinating) and making mostly men obsessed with achieving it.
The science around female anatomy is well behind men's. Women's sexual and reproductive systems are poorly funded in research. The only reason we know what the citoral complex looks like is because the doctor (a genital reconstruction specialist for FGM) funding it himself (Dr. Pierre Foldès is a hero and his work also firmly established a 'G-spot' does exist in all women) to better their work.
Now, take into mind this was 2009 (1998 for a rough one). I'll say that again, 2009 we finally had accurate imaging of the clitoral structure. Conversely, when did we have accurate imaging of male reproductive systems being done? The 80's onwards. This is mostly as science until fairly recently has been based around white men, only in the last 15 years has science woken up to how fit white men, 20 to 35 are not typical to the general population. It's why a lot of drugs and such are being retested. But women's sexual health is still lagging.
Only a few studies have been done on squirting. Everyone likes to point out one study that used 7 women, two of which claimed squirting but was identical to their urine. But no one notices the other 5. They also fail to note the problems with the imaging methodology.
Pee to empty the bladder. Then masturbate. Stop and get imaged, with no mention of how long this took on average. Then continue masturbating to orgasm. The same isn't and hasn't been done on men, and that change should be noted.
They also didn't control for hydration levels. Someone who drinks less water will have more cystalised urine in the pipes. Or diet. High salt or fat content will change things.
It's the same with men's spunk, the less hydrated they are the more bitter it tastes. The higher salt, fault, or red meat in their diet the more it impacts on taste.
Porn is almost always straight up urinating, women down a lot of water before starting squirting including vids.
I will also say, I don't think every woman can squirt. The same way I don't think every woman can orgasm from vaginal only/anal only stimulation. The same way some men can't orgasm from oral/vaginal/anal penetration, can't orgasm with anal stimulation. Part of it may be trained (death grip is true for both men and women), but also sensitivities vary.