Yes. The format is mono, or stereo, or dual mono, or surround, etc.
They're probably not set to the same given that the input format of the channel strip is not the same. To check, click-hold the right-hand side of each plug-in's insert, and place your mouse pointer over the name of the plug-in at the top of the pop-up menu.
For example the following Channel EQ plug-in is stereo:
No, that's not normal.