Personally I love my compact filter and I am not worried about it at all as they’ve said they’re going to try to make the new filter cartridges compatible (I do vent sometimes and use a prefilter so I’m getting several months of use out of each cartridge)
But that said, if you have the ability to vent all the time and you don’t plan to cut stinky things or don’t think you need the filter then by all means send it back. It’s totally not necessary to have a great experience with the GF.