I mean it’s not squelch squelch squelch at all. I think you generally get a waxed version put in and stuff, it’s not just normal carpet. Certainly mouldering isn’t an issue I’ve ever encountered with them in situations I’ve been around them.
But TBH the horror for me is piss from any blokes missing the toilet at all.
Typically it is the mark of an old person’s home or someone renting the home of an old person to you.