Yep, localization is a huge size bloat for enterprisey apps that support many locales. There is no Apple provided way to dynamically download select localization packs based on the device locale. Meta came up with their own solution: https://engineering.fb.com/2022/05/09/android/language-packs...

The small filesize issue is something we commonly see in games, was surprised to see it for Gmail.

And btw we open-sourced much of our analysis after being acquired by Sentry: https://github.com/getsentry/launchpad