It has been disabled in c388f79

Upstream CL: https://chromium-review.googlesource.com/c/chromium/src/+/1767596

Upstream now also supports linux, we should fix this and look into enabling on all 3 platforms. Although complete support can't be provided because of proprietary components, just enough support to load the plugin via our command line api.

/cc @electron/wg-upgrades