Interesting. Cardassian starship weapons are most frequently described as phasers arrays. I can’t say for certain it’s never said in an episode that they also carry disruptors, but I do know that every time I can remember a shipboard armament on a Cardassian vessel being mentioned, it’s a phaser.
The DS9 Technical Manual says the Cardassian ships have spiral-wave disruptor arrays and a large aft disruptor cannon – presumably that’s what the pincer like structure on the back is supposed to be – but the DS9 Tech Manual is also…not up to the standard of quality established by the TNG Technical Manual.
Now I kinda want to check.
Edit: Obviously also not canon, but the Star Trek Adventures Core Rulebook lists the Galor-class as having both phasers and disruptors.