We just rinse if it's a wee and use sanitising wipes or spray if it's a poo or sometimes just at the end of the day if there's no time (I have a 5mo too so can only do what I can when I can)
We use either the Milton spray or Milton wipes, they don’t seem to irritate him but it’s still antibacterial
With my first, for wee’s id rinse it thoroughly and clean at the end of the day. 💩 is a different matter and I’d use bleach cleaner after each use