Is Invest Grade Really Worth It for Long-Term Gains?

I've been diving deep into the concept of Invest Grade stocks lately and I'm curious about everyone's thoughts on it. I get that these are generally seen as safer bets with stable returns, but I'm wondering if they truly live up to the hype for long-term investments. Do you think it's better to stick with these reliable stocks, or should we be exploring riskier options that might offer higher rewards? I've had a few friends advise me to diversify more into growth stocks instead. What’s been your experience? Are there any Invest Grade stocks you swear by, or do you think it's just a comfort zone for traders who don't want to take risks? Looking forward to hearing what you all think!