Big websites use categorization, search, filters, and visual hierarchy to help...

https://mega-wiki.win/index.php/Why_Adding_More_Content_Makes_UX_Worse_If_Structure_Doesn%E2%80%99t_Change

Big websites use categorization, search, filters, and visual hierarchy to help you find what you need quickly. Clear categories group similar items together. Search lets you jump straight to what you want