Not that long ago there was an announcement by GitHub where they talked about adding a feature for developers to monetize their projects. I don't remember what it was exactly but I think it was that you could make the releases only available to people who paid and some people were outraged. This isn't even a new thing, people were selling copies of OSS for decades.
And it's not only about money. There's too much shitting on OSS devs for minor problems. Some project doesn't get updated every day and people just start blasting the dev even though they got the software for free with no strings attached.
I'm not saying you can't criticize but personally I'm a lot more lenient on something I got completely for free, no limits, no contracts.
I would hope any business that acquired such a project would respect the foundation laid by the open source community through their contributions over the last two decades. After all, the reason Qt is hailed as such a fantastic framework is because it has been collaborated on for years by the same community that used it to create their own applications. The heavy use of the framework is what makes it valuable. KDE is an expample of an entire open source distribution that uses Qt much like gnome uses the GTK.
https://www.qt.io/blog/top-contributors-to-qt-project-in-202...
I like Qt. It has some fucked up bits, but for the most part, it's one of the least frustrating UI experiences I've had. That being said, I can't discourage anybody from using it in a commercial context enough. Please don't give them any money. If you're curious on specifics, just ask; I don't think a wall of text of me just listing my gripes would be terribly helpful.
Myself I have zero problems paying for software if it is good. My problem with Qt is that it isn't worth my money.
These two are not mutually exclusive, one can want a good FLOSS library and at the same time dislike the tactics of company that is currently developing said FLOSS library.