Horizontal Pee-ers….. help!

My husband and I have 3 cats and one then is and has been a horizontal pee-er his entire life. No vet issues. Nothing. Just a pain in my ass! After years and years of trying different litter boxes, cleaning up so much pee, etc, we decided to get the litter robot 5 pro because we just couldn’t do it anymore. Now I’m hearing / reading they can pee into the waste port trapper?? We just spent so much $ on this hoping it would be a fix but now I’m nervous.

Does anyone else have a cat that straight up pees horizontally and has the litter robot 5 pro with advice? Thank you!