Today, Counter Strike 2, the new CS, was officially presented. Valve also answered the question about skins.
Information about skins was found in several places. The most important thing is that you can sleep soundly. Counter-Strike 2 will launch in the summer of 2023, and tests for selected people are already being launched.
The information that confirms that the skins are passing was on the official blog, exactly this section:
You don’t need to do anything to keep your inventory. Valve will carry out everything automatically, without the need to take any action. Naturally, major and minor mishaps are to be expected, but these are inevitable.