A “Figma Linux” client is not the same thing as an official native Figma desktop release. Identify the exact package and maintainer, then test login, file editing, fonts, clipboard, local export, and updates on your Linux distribution. Compare the experience with Figma in a supported browser.
Treat an unofficial wrapper as an additional dependency with its own security and maintenance risks. Keep design files accessible through the web workflow and verify that a client update does not block access to shared projects.