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400+ Arch Linux AUR Packages Compromised in a Supply Chain Attack Deploying Infostealers
(cybersecuritynews.com)
This is a most excellent place for technology news and articles.
Arch actually has a large amount of official packages. Maybe some of the packages you're referring to are just slightly renamed or alternate versions?
It's possible that in some areas it has fewer packages of course (e.g. Debian might repackage a larger subset of PyPI as Python packages), but I need the AUR for very few things.