Yes, I know Intercom offers the option to seamlessly switch to email, but at that point you could just build a simple 1990's email contact form in a fancy JS popup and it's effectively the same thing.
I understand Intercom made a billion dollar company out of their chat widget because businesses want to look savvy, but that doesn't mean it's actually a good experience for users. As a startup founder myself, I care more about a seamless experience for my customers than for me.