Issue on Gnome App windows fonts [duplicate]
The issue I'm facing is pretty much described with the title and the screenshot below.
I'm using Ubuntu 21.10, Gnome 40, Wayland display manager on a machine powered by ryzen 5 4500u with radeon graphics (incase any of that is needed to diagonise the issue).
Enlarge the image and see the difference in font readability betweeen the dash/status bar vs snap-store
This seems to be bug #1871779.
I saw the same as you when using snap-store from the latest/stable channel. Then I switched to latest/beta:
snap remove snap-store
snap install snap-store --channel=latest/beta
and it made a huge difference with respect to font rendering.