With braid/super lines and dealing with water freezes, there are some ways to reduce it. First I use the thinnest lightest line I can. Be it like 1-2# Fireline or a 3-5# braid line.
Second, water repellent treatment or ice deterrent treatment. Be it silicone or wax on the line or line guides on your rod.
I do find that I don’t like the water bubbles trapped on the line and the flasher read out on that. Hence I personally haven’t bothered to line treatment so far as ice fishing goes. I also tend to get lazy and just stay inside my heated shelter.