The poop game is strong in rabbits…
Looking at your rabbit’s cage, if you can swap the bedding for just a soft blanket, spare t-shirts, etc.., that’d be much more cost-effective. Generally, rabbits, especially unfixed males, really like to poop on soft things, so seeing poops/peeing on soft bedding is natural. If the cage has a solid, comfortable floor, you don’t need any bedding, as long as your rabbit has at least one or two cozy spots to settle to throughout the day and feel safe.
The reduction of soft spaces will help reduce it, having him neutered will help as well. Prompt cleaning and removing the odor will help too! Spray the area with water-diluted white vinegar, wipe it down, and it will get rid of the scent, so he will not perceive the area as a place he’s established as a poop spot. Now an unfixed rabbit may see that and decide to poop there in order to mark the new territory, so it’s a bit of a “see what happens” and intervene whenever possible scenario.
I hope this helps!
The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.