I am not convinced bad UI is either a FOSS issue, or solved by having project managers. I know very non-tech people who struggle with Windows 11, for example. I do not like MS Office on the rare occasions I have used it on other people's machines. Not that impressed by the way most browser UIs are going either.
Microsoft has been lagging on interface design for a long time. If the project managers are focused on forcing users into monetizable paths against their will, then of course you’re going to get crap interfaces and crap software quality. If you have a project manager that’s focused on directing people to solve problems for users rather than people just bolting on whatever makes sense, then that’s a lot different. And no, bad UIs aren’t inherent to FOSS— look at Firefox, Blender, Signal… all FOSS projects that are managed by people focused on integrating the most important features in a way that makes sense for the ecosystem.
