Idk why category organization like this isn't already built into this website. If you don't know CSS how can someone get a page like this set up? Is this even wise? ( knowing a site update might make the page inaccessible?

The design is available without using any special features.

 When you edit your page's theme you can choose to have a list or grid. You can also choose to include collections or projects you support. You set your own background colours.

For example, I browsed the store several years ago and made collections of completed casual games (as opposed to prototypes etc.) which I've added to the bottom of my profile page just using the theme settings.