Streamlabs was using the name, "OBS" (Streamlabs OBS aka SLOBS) in their fork of OBS and it led a bunch of people to believe that Streamlabs == OBS.

On OBS github, contributors asked SLOBS to stop doing that, and Streamlabs declined.

Streamer community outrage ensued via Twitter. Large exodus of SLOBS users to OBS. Streamlabs publicly apologized a few days later, and renamed Streamlabs OBS to Streamlabs Studio.