That's a high bar - in my experience (New Zealand) 1/3 of candidates can't even write any form of code to retrieve a random element from an array. 1/3 have to be nudged along and asked some leading questions, and 1/3 are "what the heck are you asking me that for, I can do that in my sleep, that better not be indicative of the quality of coders... "
There is just so much misrepresentation out there it's insane.
I hear these complaints a lot - and feel like the unspoken problem is your HR or recruiters are non-technical and shovel garbage candidates at devs to sort out. Whenever I've had (technical) engineering managers involved with reaching out and reviewing candidates, we rarely have misrepresentation or fakers.
There is just so much misrepresentation out there it's insane.