Google allows minified extensions and doesn't require you to provide the original unminified source. I've never provided Google the real source code to my extension and they rubber-stamp every release. The Chrome Web Store is the wild west--you're on your own.

Mozilla allows minification but you're required to provide the original buildable source. Mozilla actually looks at the code and they reject updates all the time.

Obfuscation is banned. Minification is not.

https://blog.chromium.org/2018/10/trustworthy-chrome-extensi...