When adding ReactLynx web-core-e2e cases that validate custom font faces, do not change packages/web-platform/web-core/ts/client/decodeWorker/cssLoader.ts; ReactLynx e2e fixtures are built into the binary template path by default. Keep @font-face declarations in the fixture CSS, and set font-related CSS properties directly on the <text> element so screenshot assertions cover text element font application instead of inherited wrapper styles.