Facet_Wrap is congested for More levels of factor in my dataset

[mara]

95 five is a lot of facets, so I'm not surprised that things are getting scrunched up! ggplot2 is built on top of the very powerful grid graphics system, which automatically resizes to fit the viewer window (which is what I'm guessing you're looking at in RStudio). See, for example, in the tweet from Thomas (one of the maintainers of ggplot2), below:
https://twitter.com/thomasp85/status/1162061933316583424?s=20

You can change the height, width, and aspect ratio of a plot in order to save it using ggsave() (see thread below), or in an R Markdown document by setting the fig.* options for a specific code chunk (or the whole document, if you so choose — see the knitr code chunk options at this link).

Change width and height of ggplot2 graphic?

The size of the plot is dependent on the size of the window (in RStudio) or whatever you set it as if you are exporting it. ggsave(g, height = ..., width = ...) If you want to keep a constant aspect ratio... aspect_ratio <- 2.5 height <- 7 ggsave(g, height = 7 , width = 7 * aspect_ratio)

If you're printing something, the ggforce package has new functions that allow you to paginate faceted plots:

Split facet_wrap over multiple plots — facet_wrap_paginate