How to reproduce
As of 1.21.2, the untinted top texture for grass blocks can now be seen in-game due to powder snow not occluding it. This is undesirable.
How to reproduce
Place powder snow on grass
Go inside of it
Expected results
The untinted grass block top texture would not be visible.
Actual results
It now is.
How to fix
I've attached a resource pack that fixes this, by changing the snowy grass block model so that its top texture points to the powder snow texture instead, fixing this issue.
It'd make more sense if it pointed to the normal snow texture, as that matches the side of the grass block.