Hello, I would like to inquire about the Ransomware Shield feature in the free version

Is the Ransomware Shield feature in the free version of Avast of the same quality as in the paid version, and is it fully available? Please clarify this point.

Can I feel secure using the free Fast program instead of Windows Defender?

I do not have the money, yet I found what I needed in the program.
Please answer with complete transparency.