There are a number of screaming techniques out there, some are more or less damaging to your voice.
This sounds like he's pushing himself to sing louder and/or higher than he normally can, which is not a great technique.
If done in moderation and after a proper warmup, it probably won't hurt much. Probably good to talk to a vocal coach if you want to do it a lot tho.
It also sounds like some of the distortion is coming from vocal processing. There are other vocal lines supporting him lower down so he can strain less and sing those parts quieter, which will reduce damage. He also appears to have some distortion built into the vocal chain, which will increase the intensity of the sound without him working as hard.