Google Ads seems to be testing URL inclusions and exclusions for Search campaigns. This will allow you to control which URLs your ads can show for, or not come up for your search campaigns.
This was spotted by Natasha Kaurra who posted on X about this, she also shared these screenshots showing the URL exclusion and URL inclusion tabs:
Not everyone is seeing this yet, which suggests this is a limited test for now.
But having more control is a great thing for advertisers.
Forum discussion at X.