kb > linux packaging out of date
The KB page on linux packaging (https://www.zotero.org/support/kb/linux_packaging) lists the outdated PPA repos, and does not include links to the snap/flatpack packages, but I don't have rights to edit the page it seems.
I've added links to the snaps and flatpacks, but I noticed the flatpack is one version behind. Maybe they monitor the GH releases of zotero -- 5.0.87 is not tagged there.