Clip farming?

I'm thinking of starting a clipfarming channel on YT shorts and Tiktok my idea is to take long YT videos/streams of a specific streamer and let Opus clip do the main part (if the clips won't come out complete i'll edit it a bit as well) then post it on shorts and tiktok

i'm completely new to that idea so I have questions

Is it allowed to take clips from a live stream of a local YouTuber/streamer and post them on TikTok/YouTube/Instagram?

can it be monetized?

Does using Opus Clip affect copyright or originality?

Is there a risk of shadowban or account suspension?

Should/shouldn't the YouTuber/ streamer be credited or tagged?

Do I need to get permission from the YouTuber/streamer to make clips from their channel for TikTok and YouTube Shorts?