A massive supply chain attack targeting the Arch User Repository (AUR) has compromised more than 400 community-maintained packages, with attackers injecting malicious build scripts designed to deploy credential-stealing malware and rootkit-style payloads on affected Linux systems.
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.