Power Fx is the low-code language that will be used across Microsoft Power Platform.

We are going to use the Power Fx formulas everywhere in our Power Apps development.

You can refer the Power Fx overview here:

https://learn.microsoft.com/en-us/power-platform/power-fx/overview

And here the list of Power Fx Formulas that we can use in Power Apps

https://learn.microsoft.com/en-us/power-platform/power-fx/formula-reference


Examples Functions:

User()

Now()