Elementor is much more mature and refined due to it being older. They have a lot of success and resources behind it, which is why it is the #1 WordPress page builder with no close second.
Brizy, on the other hand, is built with the same technology that was used to make Facebook. It's powerful and will allow them to do some amazing things. But that is going to take them some time. So a perfect example is this video where I list out 14 innovative features in Brizy, these are features not in other page builders. So you have to decide if these 14 features matter to you.