Get rid of / switch off spam advertising?

I've been getting this kind of spam ads on my laptop for about 2 hours. Anyone have an idea how I can no longer get this junk? Thanks for your help!

Can you get the ads without having Chrome open?

Search Chrome settings notifications and then deactivate them for the website

Then you accidentally allowed a website to send you notifications. Just look in the browser settings under website permissions which website has been allowed to send notifications and withdraw that right from strange websites