Copying my response from above for u!
I’ve been using Zotero since I converted a few weeks back. It has some really useful plugins, so I would recommend adding this one first- it’s like a store where you can easily browse and add them :))
If you ever figure it out I’d love to know, too. I relied entirely on Libre Office as an undergrad but missed this feature of MS Word. I currently use a combination of Scribbr and Purdue Owl but would prefer an offline and open source solution.
rustydrd@sh.itjust.works 2 weeks ago
Zotero has plugins for LibreOffice and other word processors: https://www.zotero.org/support/word_processor_integration