Hello @terryedavis
If your recording is recorded to the Cloud, you will want to sign into the Zoom portal and download the recording to your computer.
If you are signed into Zoom, you can click here: https://us06web.zoom.us/recording > And see your cloud recordings to download.
If the recording was stored locally then it's already on your computer.
I found the following support article from Youtube on how to upload a video to Youtube: https://support.google.com/youtube/answer/57407?hl=en&co=GENIE.Platform%3DDesktop
Hope that helps and please make sure to mark the solution as accepted if this information is what you needed.
Thank you!