The Zotero web library is a companion tool for an existing library -- it lets you browse and add items but doesn't provide the full Zotero experience (no word-processor integration, no PDF reader, no bulk export, etc.).

For learners, the recommended path is to install the free desktop app -- it takes just a few minutes and is available for Windows, macOS, and Linux. They can also install the browser connector alongside it.

See Web Library vs. Desktop for a full comparison of what each version can do.