It’s great that you have some experience with commercial game engines. Let me caution you though that successful games are 99% choosing the right gameplay and 1% choosing the tech. In other words, I recommend getting a gameplay prototype working first without thinking tech at all and then picking the right tech for your chosen gameplay. The big mistake that developers always make is to think that the 3D engine is your game. That is false. Take a look at the top selling indie steam games. None of them use unusual/advanced tech.