No more "Videos" category

[bitmap]

I would refer you to the documentation to read about what fits your needs. You've read the names of the library types and made assumptions about what they should hold rather than reading the documentation and learning what each library type actually means for organization. In brief, Shows and Movies are the two types you should focus on. Shows libraries allow/require you to organize into "Show" and "Season". Movies libraries are essentially one-entry-per-file libraries, where every media file is its own item within the library without further organization.

https://jellyfin.org/docs/general/server/media/shows

Shows probably the better way to go if you have a lot of content, movies probably better if you want a huge thumbnail wall of images as your "organization" method. To each their own.