Need advice on diversification – Large Cap + Flexi Cap overlap?

Hi all, I recently started investing in ICICI Large Cap Direct Growth. After a couple of months, I noticed that flexi cap funds look attractive, and I'm considering adding HDFC Flexi Cap.

But I read in a few blogs that flexi cap funds have heavy overlap with large cap funds, so I’m confused.

My questions: Should I reduce my allocation in the large cap fund and increase flexi cap instead?

Is it okay to hold both, or will it hurt diversification? Anyone here investing in HDFC Flexi Cap — how’s your experience?

I’m looking for proper diversification and long-term investing. Any advice would help!