If you have been following news about the digital ad ecosystem at all, the fact that Google is going to remove all third-party cookies from Chrome by 2022 is not news to you. If it is news to you and you work in the digital ad space, you should really read this.
To set the stage a bit, Google is not out on a limb here. Blocking third-party cookies is something their counterparts at Safari and Firefox already do. But since Chrome accounts for 64% of worldwide browser usage on average, the impact is considerably different.