For me this type is enough:
https://aliexpress.ru/item/33046469691.htmlYou need a size to be a little tight, othervise you can lost it in the mud. It's simple to get on/off, and it's much warmer then do things barefeet. This type is enough in all cases other then when you need to brake thin ice with it, because ankles are not protected from scratches. It may be a problem because ice starts to cast on the top of mud really fast if the temperature falls under 0C after sunset.
But need to say that basically it seems not to be a big problem to train feets tolerate 0C temperatures barefoot. At least for me much a bigger problems are hands. I had a nice mudding in the spring mudfield few days ago (with cheap 1.5 mm neoprene swimsuite it's surprisingly simple and comfort), but it was really cold for my fingers and then cleanup in cold water was a lot of pain. So now I thinking about neoprene gloves. In the same time it was relatively comfort to walk in this mud barefeet knee-deep after I overcome first tens of meters and accomodated it.
Interesting mud experince, very nice mud texture, neopren makes you a kind of temperature superman heh. Always wished to try this spring muddy ploughed fields but afraid it's too cold to do whole-body. Only tested it barefeet or aquasocks many times before.