I only had AWDs prior to this car, so this worried me too before I got the car, honestly it’s just so much more fun and agile to drive this then my previous AWDs.
I often do mild off roading- like on the photo or in the Scottish mountains and I’ve never had any issues on those roads but I could tell that the AWD can handle them more effortlessly but that’s something I’m willing to trade in for that more “fun” drive.
I don’t think I ever skid with this car but again, because it’s a RWD I pay more attention to not adding gas while in turns and the same applies on wet roads - I’ve never had any issues but this could hugely depends on your driving skills and how fast you like your car to go. And as with any EV the centre of gravity is very low for an already heavy car so in theory it should be harder to loose control even in hard turns. Ask your local BMW to lend you a car for the weekend so that you can test it out yourself and feel free to dm me for any questions if you decide to go for this car.