【OBS】Is the streaming screen inconsistent with the actual screen?

When using OBS for live streaming, there are generally two types of abnormal display issues with the streamed video: 1. Only part of the video is displayed. 2. The video is too small.
Solution for the first issue: Right-click on the video on the screen -> Transform -> Center on screen.
Solution for the second issue: Right-click on the video on the screen -> Transform -> Fit to screen.