I don’t think that’s a use case the developers really envisaged.
I know under movies (and possible shows as well), you can specify versions:
https://jellyfin.org/docs/general/server/media/movies
But I think you’re expected to select the version at playback time.
When I’ve had this issue, I’ve just transcoded to a format that all my targets can read without drama and kept the resulting file.
If your keen to experiment, I’d be curious to hear the outcome.
A lockdown browser?
If you need to use windows because of a software issue, not a hardware issue, you’re probably best off running windows in a VM.
That way your linux install is making the WPA3 connection, and as far as the Windows install is concerned, it’s on a wired lan.
This has the added benefit of not having to reboot, you just always start linux and turn the windows VM on and off as required.
As /u/[email protected] said, you can try to force a scan of the library.
Log into the admin and hit the big “Scan All Libraries” button, then give it some time.
A refresh of that page should show a progress meter.
In order to encourage more accurate detection (assuming it can find/access the new file at all), there are advised naming schemes for your files. See here for a basic overview: https://jellyfin.org/docs/general/server/media/movies
I prefer to include the full name, year and imdb info of a movie, ie Citizen Kane isn’t just “Citizen.Kane.mp4”, it’s:
“Citizen Kane (1941) [imdbid-tt0033467].mp4”
based on the information that’s publically available here https://www.imdb.com/title/tt0033467/
Even if you don’t enable imdb itself for the metadata lookup, that will give you an almost guaranteed detection during a library scan.
If this sounds like too much work, there’s several automated tools for naming your personal dvd rips, such as Radarr.
If it’s still not being detected, it’s time to dig into the logs and find out WHY it’s erroring.
Is it permissions?
Is it naming?
Is it the phase of the moon?
I think all the existing answers are on the basis of creating a new Linux VM.
And if I understand you correctly, you already have a bare metal Linux install that you want to run whilst Windows is up.
This is the best search result I could find: https://forums.virtualbox.org/viewtopic.php?t=93437
It sounds like Virtualbox will indeed create a pseudo vhdx that points to a real partition, but windows is going to give you permissions drama.
The above link is out of date though, so its best viewed as info rather than guide.
Good luck.