Per their wiki [0], these are their notes on Bun:

- No permission restrictions available. Scripts have full file system and network access.

- Supports downloading EJS script dependencies from npm (--remote-components ejs:npm).

- No support for SOCKS proxies when downloading EJS script dependencies from npm.

[0]: https://github.com/yt-dlp/yt-dlp/wiki/EJS#notes-2

I'm suprised that corporate software has not picked up deno for these reasons.