Life is too short to have winter rides ruined with cold feet , just bite the bullet & buy some decent winterboots , they’re not cheap but you’ll get a few years out of them.
I can remember my first Shimano MW80s , after spending almost just as much on overshoes , seal skins , morinos ect over the years.
Then after years of cold feet , it was one of those OMG , why did I put this off for so long ?? – NEVER had cold feet since.
Ok , they can let water in , in extreme conditions , but they still hold their warmth.