A search for "Haiku Webkit" brings up...
Re:Haiku Beta is finally here
by waddlesplash on Thursday December 27, 2018 @05:32PM
(#18773234)
Yes, this is the engine behind Haiku's built-in WebPositive.
I searched but could not see it.
A desktop-oriented OS, should have, I assume, a browser that can work with the majority of the high-traffic commerce websites (eg ebay, amazon, etc).