Yes, they submitted initial patchset to Linux kernel back in October (1 day after snapdragon X announcement). On Qualcomm’s website they say that full support for the chip will be merged into Linux kernel within six months.
Lol! Didn’t check the source. I remembered watching this video a month ago, So I linked it.
After researching more this is the information I found.
This type of attack is only possible with external TPM without PIN protection. (Not a problem for fairly new CPUs with integrated TPM ~5 year old.) This method of breaking into bitlocker isn’t new. A hijaker demonstrated it back in 2013
Yes, I have done it multiple times but you will lose recents screen and gesture navigation. If you have root, you can get it back with lawnchair + quickswitch.