This is just updating the existing post-download page after someone downloads Krita.

Current Page: https://krita.org/en/post-download-page/

This was originally a pop-up over the normal download page after a download started. That was giving issues when we redid the download page and tried to make it fit with the Mollie payment stuff. That content was moved to its own post-download page.

The idea of this is to just clean up the post-download page a bit and try to add some more useful things