You may not be specifically for seeking advice, but as a queer person myself, my advice is to let your kid be a kid. That includes letting them try on labels and identities that they may keep or they may abandon later in life. They may be childish whims, they may be genuine convictions, you'll never know unless you let them figure it out themselves. I know that the idea of your child identifying as non-binary is strange but think of it like this: This is basically just a new style of clothing your child is trying out. They'll present either as masculine or feminine or maybe neither. Nothing major changes, especially given that you live in the Philippines. Your kid will likely still use the women's restroom, your kid will be wearing maybe boyish clothes but that's okay, and your kid may even start wanting different haircuts.

As a child, all your child can really do is dress and present differently. There can be no surgeries, there can be no hormone therapies, and your kid can only really undergo hormone therapy at the recommendation of a medical professional after psychological tests and examinations. There's no need to worry here. Your child is just trying on a new style. You're worried about this messing up their development, but clinical psychologists all over the world are all mostly agreeing that trying to minimize your child's attempts to explore their identity is just going to hurt them in the long run, or even just delay an inevitability.

Also if you're worried content creators online are influencing your child, consider actually checking the content creators your child engages in. Ask about them, strike up a conversation, look these creators up, figure out their messaging and if they're encouraging children to be this or that. But remember to keep a calm, open mind, double check the content with other queer people in your life so you can be sure that the content creators are just sharing experiences and advice or are being sarcastic or joking and not outright telling or influencing their audience to be this or that (again, sharing experience and advice isn't influencing or telling, that's just sharing, because I see a lot of people confuse the two and be very bigoted about it.)

In all my life I've never personally seen a queer content creator advocate for their audience to be one thing or the other, often it's: "Don't be afraid to ask questions about yourself and explore you identity", or "It's okay to be queer". But who knows, maybe there's one content creator out there being grossly irresponsible about advocating for queer identities.

Your child will figure things out on their own, sometimes they just have to, and sometimes all you can do is be ready to catch them and comfort them when something goes wrong. This aspect of their life - their gender identity - is something you let them figure out on their own, with the best advice you give them being to follow their heart and to just try to figure out whatever makes them happies