Standard practice and advice everywhere except nostr is to edit and upload at as high quality as possible BECAUSE those platforms/services will the compress it and you’ll lose some quality. It’s counterintuitive to ask users/artists to compress their videos first before uploading.
Discussion
Dear app and media-hosting devs dealing with video content:
I have been compressing my own videos for Nostr, it definitely hurts the quality but upload size is much smaller. It would be nice if some of the apps would do it for me upon upload.
I do it too. But it’s not good UX and it’s not what other platforms do, and therefore it makes that part of nostr feel broken for most people.