It's usually scrambled or obfuscated to make it difficult to sniff DRAM. I've mostly seen it in the PayTV market SoCs. If you want crashes, then it should still work. If you want controllable PC, that would be more difficult to achieve I guess.

Every CPU scrambles DRAM. So nothing changes. Not relevant. If it works on Intel/AMD then it will work on arduino. Almost all signalling uses scramblers in one way or another because "physical layer" needs to have changing signal. And here, you are using embedded scrambler, as with normal traffic.