Regarding hardware, my brain needs an overview first before I can start absorbing the details of wet plate photography...and I can't find such an explanation. How are wet plate cameras/holders different from dry plate and film?

For example, Chamonix sells new wet plate cameras with no mention of doing dry plates. Ya can't do both? So what's the difference in cameras/holders between wet and dry plate?

A dedicated wet plate camera can't do film with the proper film holders?

On another forum, a guy was talking about doing reduced wet plate sizes with an 11x14 camera, and indicated you "just change inserts" to go smaller...what is he talking about? My brain says you need a reducing back (and holders) to go smaller. I know there are inserts to use film in dry plate holders, but as far as shooting, say, 5x7 wet plates in an 11x14 camera by "changing inserts"? ????