I used closed and open source software. It just feels much better if I see a bug, fix it, place a pull request and be done with it, than discuss with some devs in a bug tracker if and when they want to fix a bug I hate.
It's no surprise that most open source software is clunky and hard to use whereas closed products always have that visual polish.
Creating a Pull Request doesn't mean that the developer of the open source project has to accept it verbatim if it doesn't fit with the 'vision.'
[Also, I'm pretty sure that the parent to your post was talking about bugs that probably don't involve visuals.]
And often big projects have, similar to closed source software, rather ugly workflows where you have to discuss stuff before you're assigned to a bug and then have to send it patches and what not.
A good review process is important or else everything ends in chaos.
A lot of open/free projects are indeed "hobby" projects (and not in a good way) -- but to claim that all of them are bad? Compared to what? The shareware scene from the 90s?
Closed products always have that visual polish