In terms of numbers of users, I thought it was interesting that the first Humble Indie Bundle had about 16% of downloads being Linux downloads, whereas the newer releases are like < 5%. Did the novelty of Linux gaming wear off? I bought the first few but haven't bought any since, so I'm contributing to those stats - but also I got older and stopped playing as many games.

All these numbers are way higher than 0.1 % though. I admit I just don't believe the OP that Linux sales were 0.1 %. I would believe 1%.

Also my first interpretation of the headline was "Linux users provide valuable feedback!", which matches my experience. I report so many bugs against everything all the time as a Linux user, if a game had a bugtracker I would definitely use it if I encountered a bug. Whether the issues were Linux-specific or not, I don't know.

Finally, my experience with cross-platform development is just not nearly as bad as I keep hearing. I do it. Bundle, and use an already cross-platform library for your GUI or graphics. I admit I don't make 3D games, but I'm super perplexed as to what is supposedly so hard about the cross-platform aspect of it. For my (non 3D) graphics I don't even use electron, just Qt (also perplexed by those thinking electron is the only way to do cross-platform). I've never tried to freeze my code so it will work on future systems (it is open-source and maintained to stay up to date), but I know exactly what I would do if I had to - I would bundle literally everything except glibc and the kernel and call it a day. Would anything trip me up if I were to do that? Am I naive and waiting to be burned by something I don't understand? Maybe - but it seems like the devs complaining about cross-platform development being hard aren't even doing this step.

I found that the first few were actually indie, and progressively, the bundles became more and more un-indie, more DRMed, people buying for Steam key resale, etc?