Ugh. Gross. No. I don't want every message on the planet to go through Google servers. This is not good.
Google's version is end to end encrypted. Apple decided to not implement that. That's the bad part. If you text an apple user, your data is in the clear.
RCS encryption on Android is not part of the RCS protocol, it's part of the Google Messages app. https://support.google.com/messages/answer/10262381?hl=en