Hehehe never apply to Canonical. I sat 6 interviews, 2 psychometric evals including an IQ-adjacent evaluation, submitted a take home assessment and was asked about my high school math grades just to be offered a job with a more advanced title paying 20k less than what I was currently making. I only sat it through because I wanted to post the offer on glassdoor/levels so others didn't have to waste their time either. (And because I wanted to see if I could pass their famously grueling application process)

So yes I've seen companies (big ones) do this sort of thing.