The ABBA firmwares from board manufacturers usually include an updated version of AMD's SMU (the code which governs CPU boost based on power/temperature budget), which allows most processors to reach their rated maximum multiplier.
Most official BIOS updates prior to those based on ABBA use an older SMU which limits many processors to a mulitplier 0.25 to 0.5 below what they were advertised as being capable of.
Check what multiplier/frequency your CPU/board combination is currently reaching when monitoring using HWiNFO for 5-10 minutes. It should briefly/occasionally peak at 44x / ~4400MHz under light loads providing its kept cool enough, but its quite likely you'll only be seeing 43.25-43.75.
If you're not seeing some cores reach x44 occasionally, then the latest update might be worth trying, though it is only a ~1% improvement.
The recent ABBA update for the Asus Prime X470 Pro took my 3600X max multiplier from 43.5 on a couple of cores up to 44 on four cores at the price of an extra 25mV in core voltage when set to Auto (previously peak voltage was 1.45V, now its 1.475V).
It also seems less susceptible to losing performance and peak multiplier from applying a negative offset to the core voltage.
In my case, for my board and processor, yes probably worth the update.
