you have to dry but normal toilet paper rips. other countries have a dedicated communal bidet towel which is fucking disgusting. the solution is really thick toilet paper like charmin and/or butt wipes. you don't need much of either depending on the consistency of your shit and what's left over a bidet very well may just spread it around. if there's a lot of shit left i would suggest getting the bulk of the leftovers with toilet paper first (i fold a couple sheets together and use my middle finger to scoop/roll it up and not spread it) and focus on using the bidet like an enema to get the last little bit in your ass unstuck before finishing with a usual wad of paper. if there's shit on the paper then just repeat the process until the paper is clean i teach every woman i date to do this. their assholes aren't supposed to smell when presenting themselves to you for sex any length of time after their last shower or shit. this is what the rest of the world enjoys
Canada