@Kelly149
That appears to be the exact opposite of what we experience over here. Perhaps it's different in the US.
Our "problem" is that Airbnb keeps us booked. Continuously. It's hard to leave it. Other platforms, such as VRBO, never get a chance, because Airbnb books it up well in advance. But that has much to do with the fact that we're solidly 5* rated on Airbnb but total zero on VRBO.
But also, you say you're prices are lower on VRBO. That's also something that would be pretty dangerous over here. In our experience, low prices tend to invite the worst quality of guest. We rather dread the winter season because the market prices we're forced to compete with, become reachable to a rather bad element. And we've had many problems with low paying guests, lying about number of people, trashing the house, etc.
Also, we used to be on VRBO years ago, but cancelled our listing because of the 2 bookings we received, both were party animals, and caused damage. At that time, it was not possible to vet any guests. Like booking.com, you were obliged to accept every booking from anybody.
So, now we've gone back on VRBO but without IB, and in 6 months, have never received one enquiry. It's basically a carbon copy of our Airbnb listing. Except of course, for the hundreds of positive reviews, which explains why we're relegated to the bottom of search results.