It’s insane how much write-only documentation is produced by big companies. Usually there is some kind of regulatory reason - like some documents have to be preserved for 40 years. Luckily it’s not mandatory to keep paper archives any more (if you live in a sane jurisdiction of course) .
That’s the correct way to do it.
The wrong way to to do it is: moving to another team requires you to go through the full hiring process. Any lateral movement, for example backend engineer -> fronted engineer is treated as if you’re a junior starting a completely new career.