In the late 80s and early 90s there was this trend that I like to call “the camcorder episode” and almost every show did it regardless of genre. A camcorder episode was either entirely or partially shot from the point of view of a camera eyepiece as if you the viewer were filming the episode. The shot itself was usually bit grey, perhaps some static fuzz from time to time, and had triangular lines in the corners to indicate framing and the word “rec” flashing red at the bottom to indicate recording.
The premise of these shows was something like a home video or a character doing some kind of armature documentary or some such. Usually it starts off innocently but somewhere along the line something gets seen that shouldn’t be seen, maybe an argument or a crime, just something to justify the camera view.
The reason for these episodes was two-fold. One, the size of video cameras had gotten small enough that carrying one around was not a chore and they were cheap enough that people could actually afford one. This may seem strange now since most people these days essentially carry a high-def movie camera in their pocket but being able to have your own personal video camera was once a really novel idea.
The second reason for doing this kind of episode was simply a way to do something different. It changed up the typical three camera setup of most shows and just added nuance that spiced up the format of your TV show. Again, this may seem a bit quaint in a time where everyone can have their own YouTube channel and pretty much everyone films everything at all times, but there was a time where the idea of doing your own video documentation was kinda cool and different and TV shows tried to reflect that.
It must be noted that this is very much a product of its time and reflected the time period’s sensibilities and, let’s face it, technology. So it rather strange that an episode of Voyager would do a camcorder episode since it is set in the 24th century and you would imagine that technology would progress just a tad at that point.