It's much more a sign of their failed mobile strategy, which hinged on UI convergence between the desktop and mobile versions of Ubuntu. With all that gone, pooling their efforts with the rest of the Gnome-using world only makes sense (much of the Unity desktop also consisted of appropriated Gnome components).
I think your conclusion falls under the term non sequitur. It does not show anything about Canonical's financial incentives or their strategy, your statement is basically stating an assumption what the reason is.
Further I would argue it is irrelevant to the initial argument.
What has Canonical to do with it? Neither "Linux", "Linux Desktop", "Linux Gaming" or "AMD graphics under Linux" are in any way tied solely to Canonical or what Canonical does. Again, am I missing something?
> It does not show anything about Canonical's financial incentives or their strategy, your statement is basically stating an assumption what the reason is.
Fair point.
> What has Canonical to do with it? Neither "Linux", "Linux Desktop", "Linux Gaming" or "AMD graphics under Linux" are in any way tied solely to Canonical or what Canonical does. Again, am I missing something?
Ubuntu is the only official supported distribution by Steam and GOG (they also support Linux Mint, but it's based on Ubuntu).
RedHat and Valve do way more for Linux gaming than Canonical. So I agree with the above, Canonical's decisions aren't affecting Linux gaming that much.
Because Valve assume majority of users are using Ubuntu or derivatives. Which doesn't contradict what I said above. RedHat developers contribute a lot to Mesa. Canonical isn't exactly known to do that.