Devs DO sell their games on F95. The site turns pirates to patrons and produces original content as well.
Long story short, use the Seeds of Chaos thread as point of reference.
In a direct way Devs do not sell their games on F95. F95 has no online shop, not in a way like you see on Steam, Nutaku, GOG etc. where devs do sell their games.
In a abstract way you can call F95 a marketing platform which generates new patrons from advertising their own games here. At the same time I could say that devs sell their game by nuking every hoster for sharing their game (DMCA request) whic force pirate to sign up on their patroen page.
Latter one was done by Inceton and they gained a lot of new patrons from that because F95 uploader stopped using MEGA and other hostfiles that ban their accounts (e.g. Joker's MEGA accounts).
Developer of The Twist added some sort of DRM into his game forcing every player to sign up on his patreon page to unlock the loading option (easy to crack). Another dev added a patreon-login into their game which prevents pirates from playing the latest update before it becomes public after 30 days. All this measurements led to significant increase of numbers of supporters within a short time of period. More than after all the months or years when their game was "advertised" here on F95.
Devs also benefit from NOPY being gone now.
From my explanation you can see, that a small developer would benefit more from adding DRM and anti-privacy measurements than using F95 as marketing platform. In other words: F95 costs devs money while DRM and anti-privacy measurements gain revenue.