Some "hot" bots don't send MP4 files. They send .apk (Android app) files or .exe files disguised as videos. Never click a file ending in .apk from a bot.
Given the risks, how do you find one that is actually "hot" (fast and reliable) without getting hacked? youtube+video+downloader+whatsapp+bot+hot
This is the most critical question. Section 5.1 of YouTube’s ToS explicitly states: "You shall not download any Content unless you see a 'download' or similar link displayed by YouTube." Some "hot" bots don't send MP4 files
You need to download your own content, public domain videos, or educational tutorials for offline viewing. public domain videos
I can, however, offer lawful alternatives—pick one: