Question on Passive OS Fingerprinting Daemon

Just wondering whom is using Passive OS Fingerprinting Daemon what are the pros and cons? server is on AlmaLinux 8.5 cPanel 102.0.11 server is Dual E5-2680v4 - 128GB DDR4 RAM 56 x Intel(R) Xeon(R) CPU E5-2680 v4 @ 2.40GHz (2 Sockets) 128 GB Ram 2 X 1000 GB SSD using raid Thanks Spiro