This was something that was particularly useful in the original OBS. You could switch from scale to fit or 1:1. I would like to see this brought back to OBS Multiplatform because as far as I know, this hasn't been implemented yet.
I would also like to see this functionality be improved with more options, such as scale to 50% or a custom W x H size.
I would also like to see this functionality be improved with more options, such as scale to 50% or a custom W x H size.