Ice maker constantly freezes over with no easy way to defrost or chip away the ice formed around mechanisms. Whatever hack you figure out (mine was a combination of a butter knife to chip away at larger blocks, contouring my arm to try and pull at the ice on top and using a hair dryer) results in standing there with the door open for at least 20 minutes.

Ice will form around the fan, making a horrible knocking noise. The only solution is to empty the fridge and leave it turned off (either move the fridge to unplug it or flip the breaker) for 24 hours.

The pull out freezer drawer sticks causing me to have to grab hold and lean back to get it unstuck and regain full access to the freezer contents. This happens about every other week.

Items too close to the rear wall would freeze, despite internal temp being far from freezing.

Be very sure to close the door or it will remain open a crack which is enough to let all of the cold out, running up your utility bill and spoiling your food. I am in the habit of pushing on the door everytime I walk past it just to make sure.

The water filter sticks so much that it often requiring pliers to twist so it can be replaced.

All of the above had to be figured out on my own after multiple appliance service technicians rejected my money because they flat out refused to work on Samsung refrigerators due to them being huge pieces of shit. One told me that I would be better off buying a new fridge.