Are you seeing unwanted Chrome notifications pop up on your screen (often on the bottom right side)?
Here is how you can disable them. Paste chrome://settings/content/notifications?search=notifications into your Chrome browser.
You will see a page that looks like this:
Under “Allowed to send notifications,” you will see some sites that have been sending you unwanted pop-up notifications. To disable that, click on the three dots by the website, and hit Remove.