How does Telegram web hide its API requests from the browser network tab?

I noticed Telegram Web (k) somehow manages to hide its API (MTProto) calls. I looked at their repository to figure out what kind of requests are used in the browser but I think it’s not anything different than websockets (I’m not sure though)

I checked every mode of network inspector (All, HTTP, ws, etc.) but nothing shows any call made.

Telegram web hides API calls from browser inspect

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