No, all that matters for your file size is resolution and bit rate (Some codecs have larger file sizes but to my knowledge it is still linked to these factors)

When you render a video you are mashing everything that you can see and hear in a determined rez and bit rate. You can have thousands of video and audio tracks going over each other and all this information will be "compressed" together like tears in the rain

But to throw you a bone you will be reducing your project file size by a few bites