Yes, and it's actually pretty good. Here's how it works:

• Keep some BNB in your account
• Fees automatically deduct from BNB with 25% off
• 0.1% becomes 0.075% — adds up over time
• No minimum holding — even 1 BNB works

⚠️ One thing though: you have to manually enable "Use BNB to pay fees" in settings. It's off by default. I had a friend using Binance for 6 months without realizing...

The discount applies to spot, margin, and futures fees. Totally worth it if you trade regularly.