Google Sheets application for MacOS Arm/M1 machines

This is a step-by-step that seemed to work for me (dated March 2023).

Install steps

1. npm install -g nativefier (see https://github.com/nativefier/nativefier)
2. Move icon.icns into your user directory
3. Within your user directory, run nativefier 'https://docs.google.com/spreadsheets' --user-agent firefox --icon icon.icns --name 'Google Sheets' --honest
4. Open generated folder and move Google Sheets application to your Applications folder
5. Open it
6. Open Activity Monitor, right-click on columns and ensure Kind is selected
7. Search for Google Sheets to double check Kind=Apple. If yes, this is a Universal App ✅