Thinking about an interest-only mortgage—is it a smart move?

Been looking into buying my first place, and someone mentioned interest-only mortgages as a way to keep monthly payments lower at first. Sounds tempting, but I'm kinda skeptical. Like, sure, lower payments sound great right now, but what happens later when the principal kicks in? Feels like it could be risky down the line. Has anyone here actually done this or know someone who has? Curious if it's worth considering or if it's just asking for trouble...