Struggling to get my 2020 beyond the 1.0 version

When you sent the log to support

sendLogToSupport(), sending log: success

were you able to include your email address ? If yes I guess an issue will open and you could be contacted with an update on progress or what to do next.

As a clue to what seemed to happen … these are the sort of remarks we do not want to see in a super partition device.

(debug)fastboot: error: Failed to boot into userspace fastboot; one or more components might be unbootable.
...
(debug)D:\easy-installer>“D:\easy-installer\bin\adb\fastboot” -s "“202011T2E002413"” flash system system.img
...
(debug)Writing ‘system’ FAILED (remote: ‘This partition doesn’t exist’)
...
(debug)fastboot: error: Command failed

The final fail message is Exit value = 18

Error 18 represents “Can’t flash system”

Your log did not include the flashing of gz.img a thing I commented on here Teracube 2e Zirconia Manual Install Documentation Issue - #5 by aibd

You will see that @metaphortune went on to try a manual install Teracube 2e Zirconia Manual Install Documentation Issue and created two issues on the Gitlab

Install updates by all means but avoid taking an update with an Android SPL in advance of the SPL shown in https://gitlab.e.foundation/e/os/releases/-/releases – currently:

This /e/OS v1.14 includes the Android security patches available until July.