It changes how you see.
Yes; being stuck with one lens actually helps you deal with subject matter better. It focusses the mind on what's reasonably correct usage
for a particular lens. As long as you work within that restriction you should do all right; forcing its natural boundaries doesn't usually work unless you are dealing with subjects other than people, where distortion is seldom flattering, though even that can be subject to convention: during the 60s many working on 135 format used to use 35mm lenses as standard, even shooting half-lengths with it. In some cases and from higher angles, there was a signature distortion with the top of the model's head; an obvious effect of perspective that was a trademark of the times then, but just looks ugly today. Beware dramatically fashionable!
Having written that, I'm also aware of having seen some really ugly shots from guys using the new breed of Zeiss 35mm optics... so-called portraits that do nothing positive
for the subject but do show the excellence of the lens. Seems a bit of a perverse use.