Don't use the nrf52 power output to supply the RTC, the RTC can handle voltage as low as 1.1V, have both use directly from the the coincell
The user input switch need to go to both the laptop's normal power pin as well as the nrf52 input pin
Need logic level converter to interface with user input switch, the laptop 3.3V is outside of the range of the NRF52 GPIO Max Voltage since the coin cell goes from 2.7V-3V and max GPIO is VDD + 0.3
Need to have: