In winter, water freezes. Well done! Fantastic observation!

The plot lines cover the entire year and YoY there is more ice than in the past couple of years.

You notice that in the graph you provided the link for, the lines for 2016, 2017, 2018, 2019 and 2020 are way below the mean value of 1981 to 2000?

For the years from 2016 to 2020 there's an about sigma 4 deviation to the mean of 1981 to 2000 Do you know how unlikely this makes this curves to just be random variation?

There's an about 11% degradation in surface area, in just about 20 years.

Pretty sure that graph shows that the sea ice over the last 5 years has been significantly less than the mean value from 1981-2000, even if you allow for 2 standard deviations from the mean.

Right - the chart shows that there was significantly more ice on average for 1981-2000 than there has been in the last 5 years. Hence the ice is decreasing. Go look at the chart again.

I'm not quite sure if this is supposed to be sarcastic, but this comment is actually very typical for people that either fail to grasp how the climate crisis is changing our climatic and atmospheric weather patterns or are willfully blind to the implications that the climate crisis have on the even near future.

Sad.

Nope: https://climate.nasa.gov/vital-signs/arctic-sea-ice/