Created attachment 128865 [details]
As we can see in the attached screenshot, the avatars look blurry in the users list and the avatar beside the account's name looks pixelated. This issue exists no matter if fractional display scaling is used or not.
crisp users avatars
Operating System: KDE neon Unstable Edition
KDE Plasma Version: 5.19.80
KDE Frameworks Version: 5.71.0
Qt Version: 5.14.2
Cannot reproduce, but maybe that's because I've got a high DPI screen now.
Reproduced in KDE neon Unstable 5.19.90
Fixed in https://invent.kde.org/frameworks/kirigami/-/commit/aaaabf1ea84d9c5ae9cf50a306b79f15f44f5b35 in Frameworks 5.75.