Question Texture flickering (not polygon z-fighting)

Hello!

I've noticed these texture flickering, coming from the multiple overlayed textures in the shader (definitely not a polygon z-fighting, I checked)
the solutions I've found so far are made through the code and I have no idea how to do it
is there a way to fix it via shader graph?

my unity version is 2020.3.7, URP

https://gyazo.com/8a391dc99cc91ef28129484f7625cc68

 

Share your shader graph (and maybe try in the latest 2020 version?)

 

oh. it's massive
I'll try to explain, but I have a feeling it's going to be hard to understand

I use 5 layers of tileable textures, which are blended with each other using a subgraph with different blend options like lerp, multiply, add, normal combine, slope mask, hard light blend mode etc