Video uploading by link?

DelXin27

I saw someone mention using a video link to upload a video on this site. Can someone tell me about this? There isn’t anything on the upload page or in the About Uploading page that I could see. Is this an old feature that isn’t in use anymore?
The Smiling Pony
Silly Pony - Celebrated the 13th anniversary of MLP:FIM, and 40 years of MLP!
Shimmering Smile - Celebrated the 10th anniversary of Equestria Girls!
Solar Hero - Went above and beyond for the Solar Deity, drawing from the power of the sun itself to bring balance to the fight against the Lunar Insurrection (April Fools 2023).
Roseluck - Had their OC in the 2023 Derpibooru Collab.
Flower Trio - Helped others get their OC into the 2023 Derpibooru Collab.
King Sombra - Celebrated the 10th anniversary of The Crystal Empire!
A Lovely Nightmare Night - Celebrated the 12th anniversary of MLP:FIM!
Princess of Love - Extra special version for those who participated in the Canterlot Wedding 10th anniversary event by contributing art.
Tree of Harmony - Drew someone's OC for the 2022 Community Collab
Elements of Harmony - Had an OC in the 2022 Community Collab

( ͠° ͟ʖ ͡° )
They were likely wrong; the only type of video upload we support is webm, and most dedicated video sites do not readily make that format available and upload first requires file conversion.
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