Upload video

Does upload of video have to be video already on my website or a new unreleased video? I’m confused about that part. I have many videos on my website already.

If you’re asking about Cloudflare Stream, it’s independent of the videos you already have on your website. It can be a new video. Or an old one. Doesn’t matter.

So could I use my video website link or youtube link?

If you’re asking about Cloudflare Stream, you will need to upload the video file from your computer.