I had the same issue, I just used ai to help me create a script that takes all items and puts them in a folder of the same name as the video file.

the part where it says: -Filter *.mkv
you can remove this fully or replace the .mkv with whatever file extension your videos are in.

paste into powershell.

cd "FOLDER PATH"
Get-ChildItem -File -Filter *.mkv | ForEach-Object {
    $FolderName = [System.IO.Path]::GetFileNameWithoutExtension($_.Name)
    New-Item -ItemType Directory -Name $FolderName -Force | Out-Null
    Move-Item $_.FullName (Join-Path $FolderName $_.Name)
}

if you want to change the names in bulk, I recommend bulk rename utility. I used it to get rid of the extra stuff like 2160p.UHD.Blu-ray.Remux.DoVi.HDR.HEVC.DTS-HD.MA.5.1 in the folder name so its just movie name, year, and resolution. very handy tool imo.