Almond milk uses tons of water compared to other plant milks, but still much better than cow milk at least.
https://www.bbc.com/news/science-environment-46654042
I have a hard time finding oat milk without added sugar, and I also find it expires much faster than almond milk. I get unsweetened oat milk if I think I’ll be able to go through it quickly enough otherwise I have to dump like more than 50% which feels like a waste in a different way.
I’m pretty neutral about oat milk. I have celiac disease, so I eat a lot of gluten free oats as a grain, and so I can taste more oatiness in oat milk. For instance, I eat a lot of Cheerios, which are primarily oats, and putting oat milk on top is not the perfect complement. Soy or rice milk balance flavor better imo.
Now, if I were to make a latte, then yeah oat milk all the way! But I don’t really drink lattes, and I’ve never really drank much straight-up milk. It’s mostly a cereal condiment for me. And half my family is Mexican, so if I’m going to drink a non-dairy beverage, it’s probably going to be horchata which is pretty much rice, cinnamon, and sugar.
But I’m relieved to hear that almond milk is at least not as wasteful as regular dairy. That’s no surprise though, given how horribly unethical and destructive the dairy industry is, at least where I live in the US.