This extends through to those trying for mid-level or senior developers, who can't explain simple concepts. There has always been a group of devs trying their luck - sometimes they get lucky, sometimes out of those, they put in the work and fake it until they make it. Sadly a lot are abysmal.
I also don't think it's down to AI. This predated AI. It's why any sane company has a telephone interview round to ask those insulting interview questions ... and why shysters own super-silent keyboards so they can type 'how does a hashmap work in java' and 'what are the new features in java' into tabnine/copilot whilst on the phone.
I expect some level of BSery as people try to get a job, I also know that asking some questions that will never come up in the job itself is also BS of its own but you have to separate candidates somehow.
And dealing with India is another basket of cobras altogether. Professional Interview Takers! Sheesh.