Fully managed
any Language , any library
Enhanced dev experience
CloudRun is PAYG

Cloud FUnction

same as AWS lambda
Function as a services
Scalable pay as you go to run your code with zero server managment

Some Use-Cases

New follower --> Database --> Cloud Function

Sensor --> Cloud IoT Core --> Pub/Sub --> Cloud Function --> IoT Core ---> Celing Fan

Storage --> Cloud Function --> Cloud Vision API --> Cloud Function --> Storage

Slack/Messenger/Google Home --> Dailog Flow --> Function --> API

Text Message --> Twilio