Will drinking 2 liters of water a day really bring about changes in health or skin?

I am considering trying to drink 2 liters of water a day for health management.

People around me recommend it, saying it helps flush out waste and makes the skin clearer, but since I don't usually drink much water, the 2L amount feels more burdensome than I expected.

I am curious if anyone has actually seen significant effects, such as weight loss, skin hydration, or recovery from chronic fatigue, when drinking it consistently.

Please advise if you have any specific tips for consumption or precautions.