How much crow does the Czech Republic want served with the Chinese vaccine they want? You better believe like with Western countries, they have to save face when they need China for something so expect some offense from the Czech Republic against China afterwards since they come begging with hat in hand.
Remember that the Czech President is friendly to China.
In comparison, the security services and the Mayor of Prague are hostile.
If people start taking a Chinese vaccine, it would generally result in friendlier attitudes from everyone who has the vaccine.