[XSleeper]

The problem is mainly that your relative humidity is too high. Anything over 25% RH in winter is likely to cause frost or condensation when the temperatures outdoors are low enough. (That means your dewpoint is too high.)

The type of heating and your air movement may also be a factor. The more air movement you have, from ceiling fans or similar, the warmer the windows will be, reducing the amount of condensation and ice.

Another factor could be that windows are not fully closed and locked. And then if they skipped on insulation and did a poor job of air sealing, your frames may be colder than they would otherwise be.

Your comment about Argon is nonsense.