Open Chrome
Click the three dots in the top-right corner
Select Settings
Click Privacy and security
Click Site settings
Click Notifications
Turn off Sites can ask to send notifications
Remove any allowed sites you do not want notifications from
Remove any blocked sites if needed
On Android, open Chrome
Tap the three dots
Tap Settings
Tap Site settings
Tap Notifications
Turn off notifications or remove allowed sites
On iPhone or iPad, open Settings
Tap Notifications
Tap Chrome
Turn off Allow Notifications
To stop desktop notifications from a website, open the site in Chrome
Click the lock icon in the address bar
Click Site settings
Set Notifications to Block
Restart Chrome if needed