Yeah, I use a Siri shortcut that lets me ask questions of Google Assistant. "Hey Siri, OK Google". The main downside is that this requires me to unlock my phone before it will proceed beyond this point. I usually am asking via an AirPod, when my phone is in my pocket.

But Apple is getting better, with Siri pulling up a relevant website and reading me the first bit, and offering to go further. I used this yesterday when I was driving and talking to my kid about biology; we looked up "cytoplasm" and various other technical terms, and it gave accurate definitions with sources noted. The only thing it failed to do was to tell us how many kingdoms of life there are (but from looking at Wikipedia it appears this question is not quite cut-and-dried).