You are correct, I was wrong with that adapter.
Weeks after i posted this my USB connections started acting up, even with external SSDs that had worked fine before.
It turned out that my MacBook’s USB-C port was full of lint. After cleaning, everything worked fine again including the external BluRay Drive.
I should have updated my post here, but I forgot about this thread. Sry if that caused some confusion.
Also, it sucks to hear that Verbatim changed the internal drive without any obvious markings.
I actually came across
this Thread from the MakeMKV forum full of people who were just as surprised to get an LG drive instead of the expected Pioneer.
That thread also mentions a way to flash the LG drive’s firmware using their “Ultimate Flashing Guide,” in case you still want to rip your Blu-rays.
I’ve never done this myself though, so I can’t say how risky it is or how likely it is to brick your drive.