I don’t know if that’s just a “marketing statement” (like Nikon does when they say they use their own design sensor) or the truth. But Sony managers said the 5 axis stabilization from the A7m2 is not taken from Olympus. It’s a proprietary Sony tech. I have to say it sounds quite nonsense to not use Olympus knowledge when you own a big stake int that company. Maybe all Sony did is to adapt it for a Full Frame sensor and that alone “justifies” the “proprietary” statement.