Is it mature enough to replace the Pop!_Shop or should we keep a copy of that around?

Gave it a shot. Definitely a performance increase over Pop!_Shop (and it doesn't drive my Thelio's CPU cooler nearly as hard). I do miss the colorful greeter on the shop with the Pop!_OS branding though. Are there plans to integrate something similar into the COSMIC store, or is its UI largely complete at this point?

Looking solid 👍 the addition of scaling modes will be fun to play with. Very excited for the practical features I've noticed the team adding to COSMIC DE over the current GNOME-based iteration (and GNOME in general)