Open-source FairEmail app shuts down after Google ban (reclaimthenet.org)

"All my projects have been terminated after Google falsely flagged FairEmail as spyware."

I am not a lawyer but isn't this grounds to sue Google for defamation for asserting the dev is peddling spyware?

xda topic: https://forum.xda-developers.com/t/app-5-0-fairemail-fully-f...