Hi JenFrYrEyesOnly, We cannot log in to the device using Fingerprint when the device is rebooted.
For spell check, I suggest you turn on the dictionary in keypad settings. Auto spell check underlines misspelled words in red and suggests the most likely corrections.
This feature can be turned on and off in the Smart typing settings.
If you would like to buy a cover for your device, I suggest you check with the other stores or any Samsung experience store.
Please find the link to find the nearest Samsung experience store. https://www.samsung.com/ca/ses/events.
For calling apps, I suggest you turn on wifi calling and check, if the issue still persists check with the app provider.
To move apps to sd card navigate to settings > Apps > Tap on app > storage > change > Tap sd card. If you don't see "Change" that means the app doesn't support being moved on the sd card.
We apologize for the inconvenience caused. I suggest we use a cover also we will take it as feedback.
There is no default call recording app available on phone but you can try installing a third-party app.
For the black dot on the top left of the camera, Could you share a picture of the camera for further assistance?