Steps for developers:
1) Turn on Dev mode (https://www.figma.com/dev-mode/) in your Figma project
2) Install Localizely plugin (https://www.figma.com/community/plugin/1149839905856959280/localizely) in Figma
3) Select components in your Figma design
4) The plugin will show assigned sting keys for selected texts, that designers previously assigned (or auto-generated) in Figma
This enabled designers to give view-only permission in Figma to developers, and that way ensure design won't be modified by devs.