I use Samsung's internet app every now and then, but I am definitely more of a Chrome user.
Personally I found Google Chrome to be a large resource hog on my phone's so as such it's one of the first things I disable and Continue to use the Samsung Internet option.
I've also started to use SIB more than Chrome.. I've also dabbed in Firefox too, but so far more with SIB. Chrome, like their desktop browser, has just become such a resource hog and they sat on their laurels too long without optimizing. It doesn't even allow for extensions. Meanwhile I feel like they've improved SIB a lot and even Firefox.