Optimized Battery Charging Not Available

Hey everyone.

I just got an almost-brand-new MacBook from eBay but I have noticed some odd issues with it. For some reason I can't find Optimized Battery Charging in the Battery Preference. I know that any Mac running macOS Big Sur and later support this feature, so why is it not working on mine?

I do know that a while back I had to replace a battery on a MacBook 2016 (previous generation) and after the replacement the option disappeared. This makes me believe that my Mac has a replacement battery, but according to System Profiler, it is by SMP; which is what most Macs use (or even DP). When I opened up the machine, it looked like an official Apple Battery, but I honestly am not sure how to identify that.

So, if this is something with the battery, how would I fix it? Or if it is something even Firmware or SMC related, how could I fix that?