My grandparents are staying at my house or a month and they brought their loud ass annoying schnauzers. They literally bark at anything that moves and it's super high pitch, should I take them out back and drown them in the pool? Or just continue to sit in my room and play video games because thy are so loud and obnoxious.

if you drown the schnauzers you risk that your grandparents are going to drown you as well (and they would be right) - not really a good idea
yes, schnauzers are a breed with a tendency to bark a lot - how old are they? if still young there are methods to reduce their barking (google for it)
but maybe your grandparents rely on them barking at 'anything that moves' for their own protection
so in your situation:
if it is your house, you could ask them to leave earlier
but if it is your parents house, get earphones and listen to your favourite music

btw, wonder who is more obnoxious: those lovely dogs or you

The dogs are definitely more annoying:)

somehow i doubt they were ever thinking about drowning you

Cuz i'm not annoying
Case = Solved!

but you are forgetting how much video games annoy dogs

DAMN, you got me