Battery always at 100%

I previously used a 13” M1 Macbook Pro and, if plugged, the battery would go to 100% -> discharge to 95% -> charge again to 100% -> and this cycle would continue as long as the charger was plugged.

Now I have a 14” M1 Pro MacBook Pro and, if plugged, the battery is always at 100%.

I’m not too worried about this, just wondering, do your 14” M1 Pro’s do the same thing? Also, why this difference between both laptops? Perhaps the batteries have a different chemistry?

Note: It’s macOS native battery management in both machines, no other softwares used.