Good evening! I am a WebTuga customer and I have hosting services in them and they work with Nextcloud, in the files that I have there hosting if someone wants to download the files that is to download there is no way to put this image and when it is to download it just click on top of the image and is now ready for download.
I do not understand you.
But for direct link you can add /download to the url:
https://cloud.server.tld/s/abcdefghijklmno/download
For pretty urls you can use the app ShareRenamer.