IPhone SE draining 40% overnight

I've recently had an issue with my SE draining battery like crazy when it's on standby,

took my phone to an apple store where they performed a battery checked which came out clean, and advised me to do a system restore, as it wasn't a hardware issue.

But has not seemed to fix the issue, last night I went to sleep 2am with 61% battery, woke up 8am this morning with 23%, it was connected to WiFi and cellular data was on, Bluetooth off.

Disabled background refresh and push for most apps as well as Search & Siri for all apps

Top apps were:

Outlook

Chrome

Home and lock screen

Is there anything else else I can try to resolve it?