Thinking about applying to Costco - what's the vibe like for new hires?

Hey everyone, I'm considering applying for a few positions at Costco, specifically in the warehouse or stocking roles. I've heard good things about them in general, but I'm curious about the day-to-day reality for someone just starting out. Is it as physically demanding as it looks? What's the team dynamic typically like? Are managers generally supportive, or is it more of a sink-or-swim environment? I'm trying to get a realistic picture before I dive in. Any insights from current or former employees, especially those who started recently, would be super helpful. Trying to gauge the onboarding process and if there's room for growth or just grinding it out. Thanks in advance for any honest feedback!