I’ve used a towel style bath mat for decades, I think it’s the most hygenic. It goes on the floor to shower, then gets hung to dry between showers.
I lay floors and hadn’t seen a “permanent” bath mat in years but ran into one today. It was that typical shag rug style, bright pink. This was a clean house but it was strange to me, I didn’t think anyone used those anymore.
Those are next level. They reduced the mold problem by my shower dramatically and I’ve ended up recommending these things to everyone who will listen.
Does it get slippery if it becomes too wet?
No - it’s made from pressed diatomaceous earth. It absorbs water instantly and it dries up fully in a matter of minutes. It’s really quite miraculous.