Java or .NET are going to be prevalent in any mid-size or larger nascent organization. There's absolutely no reason why you wouldn't at least embrace it in your tool belt. It's proven technology. It may not be 'fun', but making stable business systems last is the point here - not building fun tech for the sake of building fun tech. (Wrong audience here, I know)

Both Azure and AWS have fantastic documentation. The bare-bones documentation and sparse tutorials of GCP are big reasons (other than market awareness) that larger enterprise customers are hesitant to adopt.