Disclaimer: I am not an OBS developer (if that was who you were aiming for).
I use linux in my everyday work and am very happy. OBS works fine as well. However, if you have higher demands to the video encoding, and especially if you use a nvidia gpu, installing the proprietary drivers on linux can be a pain in the ar*e. The open source drivers that claim to support nvidia graphics card, on the other hand, are not as capable - that is why I would generally recommend to only use linux if you have an AMD gpu, know what you are doing and/or are patient enough to fiddle around with configuration files and such