Answer
Please do not upload your videos directly to your TUWEL course, as TUWEL is not designed for a high number of large files. LectureTube is currently also not suitable for the manual upload of videos. Use the TUpeerTube platform for your own videos. On TUpeerTube you currently have a daily allocation of 2 GB and a total allocation of 30 GB. Remember to compress large video files before uploading them.
This saves space and speeds up the upload. On TUpeerTube you can make various visibility settings (e.g.: "not listed" to hide videos from others) and to create playlists.
You can find more information regarding TUpeerTube on this coLAB website.