A lot of negativity about OSS is deserved, and doesn't necessarily come from supporters of proprietary software, but for long-time OSS users and programmers, who want it to be better.
But many OSS programs are awesome, and OBS is one of them.
But many OSS programs are awesome, and OBS is one of them.
And then most people are in for a surprise, that usually the above is only true in theory. But in reality there are driver issues, missing firmware, outdated repositories, broken updates ... critical missing features and in general a need to understand technical details with no polished UI.
And speaking of, with OBS I really liked the UI to just get started, but performance/quality of produced video was way worse for me, then simple screencapture with ffmpeg.