Context: I worked at amazon and my buddy is at Jane street and used to practice some interview questions on me ages back (I think he mostly wanted to calibrate the questions on someone he knew fairly well, to know what kind of stuff he could expect).

I'd say the standard is arguably a lot higher, the things being tested are fairly different, more focussed on raw reasoning rather than specific techniques.

The main thing I'd say is that in general the standard of interviewing for FAANG isn't actually as high as people think it is.