To use Zotero with Microsoft Word on an Apple Silicon Mac, please make sure you're running macOS 11.4 or later. A bug in macOS 11.3 and earlier can cause Zotero to freeze when using the plugin.
(If you previously set Word to open under Rosetta to work around this bug, you should select Word in Finder, go to File → Get Info, and uncheck “Open using Rosetta”, and then restart Word.)