I just want to remark here that you can play Roblox from the command line in all supported OSes and that does not instantly mean I can exploit it. In order to exploit a game, you need to edit its memory/manipulate its network requests/do other low-level stuff and that is possible in all systems, given the tools are available.
For games like CS:GO, there are specialized third-parties that carefully design their cheats around known vulnerabilities in the VAC system, which are kept really secured by Valve, and the situation is not much different from Roblox: there is a whole forum dedicated to exploiting Roblox that is pretty much known by every developer/staff member nowadays.
Of course, Linux does provide some extra low-level tools so you can tweak the system as you wish, but most of the time the cheaters you see in games are using Windows. Today’s serious exploits are cross-platform, ya know??
Lastly, Windows and its backbones are not exactly “secure”, because, differently from open-source community initiatives, the only security patches you’ll get are from Microsoft (which usually take a long time to be assembled, distributed and installed). That opens a door not only for malware but for exploiting tools too, allowing them to manipulate system resources that applications use.
tl;dr: Tagging Linux as an exploiting tool and disregarding other systems in that capability is not a valid argument.
I was a Linux user for about a year and half, and something I definitely missed in this was proper support for games. I don’t think Roblox will be ever supporting Linux, though, and the reasons stated by the employees are pretty much valid. The enormous amount of distros, each with their own different systems doesn’t help either.
Roblox still annoys me whenever I am running outdated drivers on Windows, but I’d rather update them anyways since it is really easy to do that in Windows. I see the issue in Linux, though. Drivers were, as many said before, a pain to install and maintain.
The platform already shadowbans games in mobile platforms when they run too poorly, but the public that uses those devices are generally younger and will in fact blame Roblox for it. I don’t see Linux being used by such a public though (other than in schools, which most certainly wouldn’t allow their students to play games like so). Because of the complexity of the system, I wouldn’t expect someone who’s not a geek or a tech-savvy using Debian/Arch.