What motivation would I have to lie? I’m an 11 year contributor of this site. (Look up what that means) I come here primarily to help others. And speculate on the future of Apple. I have 1,100 + messages as an example.
I’ve performed the operation. It works. You by admission “did not try.” You’ll find in these forums that experience goes a long way.
Also, Apple makes mistakes, the legacy process lead users down a path not suitable for the new drive partitioning schema for the SoC. Bad interface design, because the recovery option, also which can be done from iCloud, works and was there all along a bit hidden off the path. (Requires WiFi and you to know your iCloud Account user ID and password)
First time I tried it, was an experiment. My store is open in San Antonio, had it not worked, I would have returned it.
The second time, in a rage, I wanted to purge Apples bloated Xcode IDE from my system when I noticed the installed package now consumes 25 GB of disk space.