Is there someway to set an alarm to tell you to disengage the charging when it reaches a certain percentage
Why can’t you have some sort of an alarm system put on the charging application so that it doesn’t charge to 100%
No, there is not such an alarm.
I believe that you are worried about your battery charging a little too much. My recommendation is to simply set Optimized Battery Charging to ON and then let the iPhone handle the charging. Charge when you want to and charge for however long you want to. The iPhone is smart enough to control the charging and the amount of charge as needed. Stop worrying about the battery and begin enjoying your iPhone.
Axel F.