Can’t confirm, but i assume is because i’m on unstable branch
Also
pacman -Qi kirigami-addons
Name : kirigami-addons
Version : 0.9.0-1
Description : Add-ons for the Kirigami framework
Architecture : x86_64
URL : https://invent.kde.org/libraries/kirigami-addons
Licenses : GPL LGPL
Groups : None
Provides : None
Depends On : kirigami2
Optional Deps : None
Required By : kdeconnect kweather
Optional For : None
Conflicts With : None
Replaces : None
Installed Size : 501,74 KiB
Packager : Antonio Rojas <arojas@archlinux.org>
Build Date : Vi 30 iun 2023 19:01:52 +0300
Install Date : Du 02 iul 2023 16:34:19 +0300
Install Reason : Explicitly installed
Install Script : No
Validated By : Signature
Then i can confirm from our webpage search Packages
The thing is, on stable branch was not done yet the merger to extra from community
and all looks still a bit funky to me … Probably you could sort it out by switching branches and update mirrors first.