In addition to what others and I have already mentioned, it seems jam rating pages don’t show download buttons for entries whose web builds use this. Or is it some other thing at play? I don’t fully understand when those buttons do and don’t show up.
I also wonder if the issue aXu mentioned affects all games that have both downloadable and HTML5 builds with the latter requiring SharedArrayBuffer, or if it only affects those that are set to “No payments”. If the latter, I suspect it might be fixable by simply having the download button open a new tab with the actual download button, but I haven’t really taken the time to experiment with this (I should probably try to see if download pages on devlogs work).