Very good explanation. Now, the circumstances are more understandable.
I note, that I have no idea how to help you and what the problem is, but the problem you described is so interesting that I can't refrain from speculation.
Here they are:
- First: your points from 1 to 6 are correct, you don't have to change them, just maybe download the necessary files again from the web sources. for sure...
- Second: if you catch bootloop again (you described it), then you do not have to repeat the procedure from 1 to 6 points.
All you have to do is start the phone directly to TWRP recovery (press and hold about 5s. Vol + plus power button until you see the logo and feel the shake).
Wipe everything (data/dlavik/cache), but not the system. Do not format Data - it is unnecessary anymore. Data can already be read.
I think you don't need to flash Magisk because the modified boot is already there.
I'm not sure about RMM-Bypas 3.0 and no verity opt, but to be sure you can flash both (points 4 and 5) one by one, restart recovery - not needed I think.
Now you're fresh! you can start all over again, your bootloop will disappear, and you will see the configuration wizard again.
I think the issue is related to your google account and restore data from google copy.
Unfortunately, even without logging in to the google account, the phone updates itself as soon as it feels the network - this may also be the source of the problem.
Let us know about the test results
Pice of sh#&* this phone is.
I'm done with rooting this, will get another, "normal" phone.