I keep updating BIOS because newer versions often provide stability improvements and let you push higher overclocks. That in itself is not very interesting for an everyday overclock (which shouldn't push the hardware limits), but do allow for lowering the voltages used for sensitive components (like VSoC which was responsible for burning CPUs a couple of years ago). Lower voltage means safer operation and slower silicon degradation.
For example, I'm now running 6000 MT/s on stock VSoC which definitely wasn't possible on my hardware 1.5 years ago.
That said, my mobo vendor of choice is not known for doing rug pulls (unlike Gigabyte, who are also fond of releasing several board revisions under the same model with significant differences between them). It's the opposite — for example, a recent BIOS update added support for running internal graphics at 4K/120Hz on the same hardware that could only do 4K/60Hz before.
I'm all for naming and shaming, but why not also name and praise when a company does good by its users?
I'm not exactly in the market for a mobo right now, but I think that's useful information.
TBH, I'm not sure how much good these anecdotes do. I had bad experiences with all major brands; a high quality & expensive ASUS motherboard was the worst, even though top ASUS is considered the safest choice in circles I tend to spend time in — if you have the money (it caught fire in the middle of light code editing for no reason I could establish after five years of excellent work).
Anyway, I now stick with ASRock. This will now attract anecdotes from users who have run into problems with them, and will describe at length how crappy their products are. Works with literally any brand, so I try not to mention any unless prodded.
Makes sense if you're into that I guess. I never change the BIOS settings from their defaults unless something is causing a problem. I definitely don't fool with overclocking.
You still might want to look into curve optimizer, which is just a marketing term for an automatic undervolt. Since these AM5 CPUs are power limited, you can get (potentially) much higher clocks while still staying within the same energy budget. It's perfectly safe (AFAIK) since it doesn't involve pushing more energy into your chips (neither voltage nor TDP), and won't take very long.