I've been a long-time user of XnView MP and overall, I'm very happy with it. I really appreciate its simplicity compared to software like Adobe Lightroom or ACDSee Photo Studio
However, one feature I’ve been missing is the ability to include both videos and images in a slideshow—ideally with the option to mute video audio when custom background music has been added. I've come across a several forum posts mentioning that this isn't currently supported, but I hope it might be considered for a future update.