No, they like @gmail.com, but don't want people getting gmail for their own domains without paying.
They actually stopped scanning emails for ads in free Gmail about 5 years though. https://www.theguardian.com/technology/2017/jun/26/google-wi...
Of course, both offerings still scan your email for spam filtering, as all major providers do.
> Consumer Gmail content will not be used or scanned for any ads personalization after this change. This decision brings Gmail ads in line with how we personalize ads for other Google products. Ads shown are based on users’ settings. Users can change those settings at any time, including disabling ads personalization. G Suite will continue to be ad free.