Not sure why this is downvoted.

Even if I wanted to, these questions aren't allowed in the company I work for, along with feedback related to "team fit". This is dictated by execs, dictated by legal, because it has nothing to do with proving competence, and opens up for employment discrimination lawsuits since you're persuading them (you have to understand the power dynamic) to reveal potentially protected info. For example, if a man say "Oh, I go hiking with my boyfriend!", he could also say "They didn't hire me because I told them I was gay!". Or, even "I spend time with my kids." since familial status is a legally protected class where I am.

As a person who does interviews, I have exactly zero interest in what people do for fun. I just want competent people that are nice to work with (in a productivity sense), and I only have 45 minutes to prove that, knowing that nearly everyone fucking lies. I see it serving no purpose other than helping enforce some monoculture within the group, because, genuinely, why else would you ask about free time activities during an interview?

Related, the only time I've asked this was early on when I didn't know how to interview. The only time I've been asked this, and answered, was with people who had just started interviewing (small startups and new hiring managers).