That just means you're a much higher water burden, and part of a different problematic chain. Vegetarian and even worse, vegans have loads of problems that are just as bad and sometimes worse than a normal diet when it comes to mass food production. Including displacement and harm of animals due to farming requirements for the foodstuffs you consume.
Its impossiable to not harm something living to farm after all.
About the only real way to avoid all that is self growing algae eating basically only that and being entirely self-contained.
Feels counter productive to limit screen time for an actual good habit... Screen time isn't a real problem. What you do IS.
It would be like limiting book time just cause you don't like paper.