A lot of foss projects don’t make sense as a torrent download. For instance, most of my foss projects are libraries that people who write websites use to compile and bundle the JavaScript they ship for their website. It wouldn’t make a lot of sense to distribute this via torrent, since torrents don’t have a lot of the features you would want, like checking for new versions of the software. Because the majority of foss projects wouldn’t make sense to distribute via torrent, the developers on projects that would make sense to distribute via torrent are more likely to vend it via methods that there is more infrastructure for (like a package manager), or is easier to set up and maintain (like direct downloads). I think if you were interested in changing this part of foss culture, your best bet would be to create and publish a GitHub action that would package and upload a distributable to a torrent provider.
A lot of foss projects don’t make sense as a torrent download. For instance, most of my foss projects are libraries that people who write websites use to compile and bundle the JavaScript they ship for their website. It wouldn’t make a lot of sense to distribute this via torrent, since torrents don’t have a lot of the features you would want, like checking for new versions of the software. Because the majority of foss projects wouldn’t make sense to distribute via torrent, the developers on projects that would make sense to distribute via torrent are more likely to vend it via methods that there is more infrastructure for (like a package manager), or is easier to set up and maintain (like direct downloads). I think if you were interested in changing this part of foss culture, your best bet would be to create and publish a GitHub action that would package and upload a distributable to a torrent provider.