[2023] Co-op slayer and Raptor challenges

My wife and I do slayer almost exclusively together via the Co-op slayer method. Do special slayer challenges even occur when we do so? Because we want the Raptor trophies, and where she isn't as strong as me she needs help with certain slayer tasks.

I tried looking it up on the wiki but I'm either blind, looking at the wrong pages, or it doesn't say anything about it.

Thanks in advance!