Gilgamesh is meant to be heard, not read. It comes from an oral tradition of storytelling that was thousands of years old before it was ever written down. I just finished watching an incredible performance of it by Abed Azrié, highly recommended: https://www.youtube.com/watch?v=9ARRP5i2nw8
It is not abridged, and uses contemporary phrasing. If you want to follow along with a text, then I highly recommend using a text of a different translation. This not only reminds you that we are experiencing a translation, but also often adds a new dimension to the action as no translation is complete.
Here is a not-so-good text that seems to compliment the above-linked Youtube reading well: https://uruk-warka.dk/Gilgamish/The%20Epic%20of%20Gilgamesh....