It seems that the fixlist.txt from that old topic only reset the system registry to a known good position. Applying the same method, you can just take the line from your log that starts "LastRegBack", put it in Notepad and save it as fixlist.txt
This is the value from your log:
LastRegBack: 2020-07-25 23:52
Then you can place the file fixlist.txt to the same location as FRST
Run FRST as before and press fix
On completion try a normal boot