I’m a bit late but mid range Dimensity chips are generally more power efficient than last gen Snapdragons (888, 8 Gen 1) which means the battery should last longer - not just for a single charge but for overall battery health, as you don’t need to charge it as often

In addition to the other reply, it helps align the tx/rx coils for higher efficiency

Regarding your mouse double clicking, some Reddit users suggest pressing the click button quite hard a few times…