I don’t think either of the suggested options delivers the best possible UX. Copy of course depends on context, but „click here“ is never justified as the best alternative.
You can do:
• [Download X] - immediate download link.
• [Learn more about X] - go to webpage, discover other interactions there
• [Register to download X] - if registration required
Short and concise copy is generally better, extra information rarely makes content better.
I think it really depends on the context. In a news article it rarely makes the content better, but in a documentation wiki, the context can be everything. I think we are fooling ourselves to suggest that there is zero nuance and that there is a 100% correct approach always.
You can do:
• [Download X] - immediate download link.
• [Learn more about X] - go to webpage, discover other interactions there
• [Register to download X] - if registration required
Short and concise copy is generally better, extra information rarely makes content better.