SO you want a dual switch that takes up 2 gang slots? (So basically 2 single switches but as on unit in a 2 gang slot?) I highly doubt that would ever happen. It would be a very special case situation and would not be cost effective in tooling and bringing to market.
However I know they are making a Dual single gang switch, like the fan/light combo, but just for lights that is hardwired. Should be out in 2022 some time. That should take care of the 2/3 gang issue you might be having and just fill the extra spot in with a blank. this would leave you more room.
Other thought is replace you gang box with an extra deep box. that would allow for more room.
I have several 2 and 3 gang boxes with regular depth and have been able to get 3 inovell switches in them yes its a tight fit, but as long as everything is secured and no wire exposed, I could just push them in and mush everything to the back.