Also potentially out of the scope of the mod, but maybe they could be fixed.

• Bottom face of flowing water uses the still water texture instead of the flowing texture (MC-135789)
  

• Downwards flowing water doesn't show the downwards flowing texture through glass, even though it's not still water (MC-135788)
  

• Lava appears to be flowing downwards even when it's not, e.g. when seen through glass (MC-130542) (also maybe make water use the still water texture in such cases, instead of a soid colour, for Bedrock Edition parity)
  

Moved to CaffeineMC/sodium#91 since it probably fits better there - feel free to reopen if you think this mod would be better for fixing it though