Actually, yes I can. There is only 1% potential customers that are Linux users because of the platform's user base. Even if 100% of linux user bought a game, that would still only total 1% of a game's potential customer base.
Potential customers are not the same as real customers.
When I open a business, I have millions or maybe even billions of potential customers. But if nobody buys from me, I don't have any real customers.
And if 50% of my real customers have a blue beard but the general percentage of potential customers with a blue beard is only 1% then my business is attractive for blue beard customers for some reason.
Accordingly, it would be counterproductive to ignore blue beard customers just because most potential customers don't have blue beards.
The discussion is however a moot point, because MM said literally the same thing as I did, but without the link for proof.
A general market overview is not yet proof. A proof would be the sales figures e.g. in the Steam Shop. However, these are not publicly accessible.
Linux servers are different thing, but the tiny fraction of actual linux players are the problem.
Not really because in game streaming the server is the place where the game is run and the graphics are rendered.
This graphic is streamed to the client no matter which platform it is running on. The platform can even be an Android or iOS tablet. This is the concept behind platforms like Google Stadia.
So to be able to play on a platform like Google Stadia, the game must meet the appropriate requirements.
In this case it means to support Linux and Vulkan.