The GeForce RTX 3060 Laptop is a desktop card but with a laptop GPU. It has only 6GB GDDR6 memory instead of 12GB GDDR6 but has a CUDA specification upgrade. Instead of the desktop's 3584 cores, the laptop GPU features 3840 cores. Finally, there is a question of TDP, with the mobile variant going up to 115W and the desktop GPU requiring 170W.
There are no official drivers for these cards, they only work with custom drivers based on the 512.15 release. This essentially means that these cards are not designed for gaming, but considering its reduced power consumption while maintaining hashrate, the GeForce RTX 3060 Laptop is a great choice for mining.