I have a Librem 15v4 with a 4K UHD (3840 × 2160) internal screen. I'm running stock PureOS 8 and currently have:
GNOME Settings > Devices > Displays > Scale
set to 200%. Many applications display correctly, but some display microscopic icons (e.g., Audacity, KeePassXC, GIMP).
Is there a system-wide setting to scale the icons or is this only fixable by the application developer?