MacBook Pro shuts down halfway through login

This is very frustrating. I am running on battery, I get through the login screen after entering my password and the Home Screen begins to load and then everything goes dark. No screen, no response from the keyboard, nothing. I plug in the power adapter and it now responds. The funny thing though, and again disturbing, is the battery indicator reads plenty of battery, not in the red, remaining. In addition to this, when I click on the battery icon to see whats going on it say the adapter is not charging. This all stated happening after the "Big Sur" update was installed. Here are the stats from system preferences:

  Firmware Version:       901

  Hardware Revision:    2

  Cell Revision:              1734

  Charge Information:

  Fully Charged:                            No

  Charging:                                    No

  Full Charge Capacity (mAh):      5934

  State of Charge (%):                   69

  Health Information:

  Cycle Count:    248

  Condition:        Normal

System Power Settings:

  AC Power:

  System Sleep Timer (Minutes):                       1

  Disk Sleep Timer (Minutes):                             10

  Display Sleep Timer (Minutes):                        10

  Wake on AC Change:                                      No

  Wake on Clamshell Open:                               Yes

  Wake on LAN:                                                  Yes

  Current Power Source:                                    Yes

  Display Sleep Uses Dim:                                 Yes

  Hibernate Mode:                                              3

  PrioritizeNetworkReachabilityOverSleep:       0

  Battery Power:

  System Sleep Timer (Minutes):      1

  Disk Sleep Timer (Minutes):            10

  Display Sleep Timer (Minutes):       5

  Wake on AC Change:                     No

  Wake on Clamshell Open:              Yes

  Display Sleep Uses Dim:                Yes

  Hibernate Mode:                             3

  Reduce Brightness:                        Yes

Hardware Configuration:

  UPS Installed:    No

AC Charger Information:

  Connected:                Yes

  ID:                              0x1656

  Wattage (W):              60

  Family:                       0xe000400a

  Name:                        87W USB-C Power Adapter

  Manufacturer:            Apple Inc.

  Hardware Version:    1.0

  Firmware Version:     1070069

  Charging:                   No

I reloaded the OS "Big Sur" last night as well as did disk first aid to eliminate any problems there and no change. I have plenty of suspicions that the new OS is the issue and not any hardware or the battery itself.

If anyone has some insight please let me know.