With 1 out of 3 of those polled saying they would like Linux support, I think this topic deserves more conversation than "FAS should just focus on what is already available and works right now." That might be a very short-sighted opinion that could one day be a missed business opportunity. Ultimately FAS will do whatever they think is in their best interests, but I'd like to offer an argument on how supporting open source in general could work for their benefit in the not-so-distant future.
I've organized my thoughts into 3 points. Feel free to skip to the one that interests you but I bet you'll want to read all of them.
Point 1) The best reasons for why FAS should NEVER support anything open source.
Point 2) What does FAS stand to lose?
Point 3) Why FAS should invest in open source and the inevitable.
Point 1
The best reasons for why FAS should NEVER support anything open source.
Even a tiny precompiled closed-source Linux library that would allow access to only switching presets or some other basic options with nothing proprietary would produce cheaper solutions that would compete with their foot controllers. Those basic options might be enough for some users to prevent them from even considering buying a FC6/FC12. I don't like it, but I understand the decision to protect their products from a business perspective. They also lose control over how their interface is designed for open source systems and in turn those solutions may offer a worse experience that reflects badly on FAS. These are the same type of arguments used to defend most closed-source systems.
Point 2
What does FAS stand to lose?
Every FAS firmware that has been released, and everything that has been encrypted including Bitcoin wallets, will be deciphered in as little as 5 years from now. Why? Quantum computing. All of our current in-use encryption was not designed to be hardened against quantum computing. I don't want to spend too much time describing what quantum computing is, but I'll say it's a new type of computer and it's been estimated to only need 4,099 qubits of processing power to guess an encryption key in about 10 seconds from what used to take 300 trillion years with a classic computer. In December of 2023, IBM made a quantum computer "Condor" with 1,121 qubits of processing power. That was more than twice the previous record holder "Osprey" which had 433 qubits at the end of 2022. You can see how quickly this is progressing. The event where all encrypted documents become easily deciphered is called the "quantum apocalypse" and if you don't know how a quantum computer will break encryption, then I suggest you inform yourself sooner rather than later. It's not a question of "if," it's a question of "when." If you happen to be an optimist and think we already have or will have a "post-quantum cryptography" (PQC) standards by that time, then I suggest you look at the probabilities. It's almost a guarantee that the first few versions of widely adopted "PQC" encryptions will be poorly implemented and have a weakness that will be exploitable, sometimes by design. Additionally, it is highly likely that the first few PQC encryptions will not be open source because of the incredible value they will have. If a software-based business (FAS) wants to guarantee its future firmware software encryption is not compromised and is willing to pay for a private-party closed-source encryption, then that software-based business (FAS) will be at the whim and wills of the company selling the encryption. Imagine how even today Microsoft and Apple can make FAS jump through hoops if they were compelled to by some new software policy that would cost FAS heavily. Now imagine adding a few exponents of power to that Microsoft and Apple already have if they were the arbiters of encryption. What does open source have to do with any of this? See Point 3.
Point 3
Why open source?
The long-term solutions for truly difficult closed-source problems such as PQC will always be found with true integrity in open source. It's free with little chance of controlling the future of your company. Closed source software needs open source solutions in order to exist, as has ALWAYS been the case. For FAS, or any closed source company to maintain some sovereignty over itself, it will need encryption software from the open source community rather than rely on closed source solutions. This isn't just true for FAS, but for every one of us as individuals. Even as we wax poetic over how perfect this or that closed-source operating system is, realize the only thing keeping those systems from being more oppressive is their single greatest existential threat, open-source alternatives. Closed source software will be with us for as long as I can imagine, even after a "quantum apocalypse" (see Point 2), but understanding and supporting open source is one of the best investments for the very-long-term that a long-lasting closed source software company can make. This is why Google, Apple, and Microsoft are so heavily invested in open source instead of fighting to destroy it. They get it.
I know FAS has the know-how on Linux already, but investing now for the future where additional knowledge and experience with open source will help FAS weather the "quantum apocalypse" future is the best way forward. 5 to 10 years happens in the blink of an eye and a lot will change. If FAS finds a way to leverage open source solutions to protect its own future closed source software, they might also consider giving back to open source by allowing their protected software to have some compatibility with the open source world that made its existence possible. I bet those Linux operating systems will be looked at much more favorably post-"quantum apocalypse."
My background: Run/own an Internet security business since 2010. Software developer by trade.