> but I'd suggest doing some Deep Researches on the topic to get you a good lay of the land

thanks for the resources !. I've been trying to get a wide view by looking at different algorithms, but I was curious what was actually used in production systems especially for consumer products.

RTABMAP and Cartographer came up in my searches, will definitely give these a closer look to understand how they work.

Right now im starting off with filter based approaches like Particle filter and Kalman filter, but i'd also like to understand how the graph based approaches work.