Kiwix PWA is an offline browser for any type of ZIM content. It works offline on any device that can run Chrome, Safari, Firefox, Brave, Edge, etc. In Chromium and Safari, it can be installed as a standalone app (and in Firefox on Android). It has three different dark themes and popovers for ZIM links in Wikimedia ZIMs. There are dedicated Electron apps for Linux, Windows and macOS, including ARM64. For Win 10/11 users, an auto-updating version is in the Microsoft Store (Win10/11).

Progressive Web App: https://pwa.kiwix.org
Electron Apps: https://kiwix.github.io/kiwix-js-pwa/app
The main change in this version is the addition of packages for macOS: Apple Silicon (M1/M2/M3), Intel (x64) and legacy (macOS 10.3 High Sierra/Mojave). There is also support for the new Persistent Permissions broker in Electron 38.2+.. See full changelog.
Microsoft Store release: PUBLISHED
Winget release: PUBLISHED