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.
I have a towel rotation schedule. I have the new towel to dry myself off and the towel from last time to wrap around my waist and the towel before that (which I had wrapped around my waist the last time) goes on the floor for the same purposes as a mat. After that it goes in the laundry.