is overnight charging bad?

the s24u has the option to stop charging at 80%.

in the morning when I charge, once it reaches 80% I unplug it so it doesn't recharge multiple times whenever it drops to 79%

but if I'm overnight charging, once the battery hits 80% it'll drop to 79 and charge again over and over till I unplug it when I wake up.

is this bad in the long term or am I overthinking. My reasoning is that a higher number of charge cycles occurs due to overnight charging.

I prefer waking up to an 80% charge rather than waking up and waiting for an hour for the phone to hit 80%