I think you overestimate Canonical's size. What is happening though is really long support for older releases being provided by Canonical so you will be able t

I think you overestimate Canonical's size. What is happening though is really long support for older releases being provided by Canonical so you will be able to use older Qt 5 based apps on Ubuntu, security supported, until 2034, on Canonical's dime. With container technology (something that Canonical significantly funded, with Docker originally being based on Canonical-funded LXC) you'll be able to run those older apps on a newer base OS including future ones, too. Those are huge contributions to the user community you seem to be discounting. Disclosure: I work for Canonical. I don't speak for Canonical. But what I say above are simple verifiable and falsifiable facts and not really a matter of opinion.