You do not have to deal with this visa when traveling to Prague. It is important to comply with the rule, which states that it is necessary to stay longer in the issuing country than in other EU countries.

For example, if you stayed in France for 1-2 days or not at all, while you spend 3 days in the Czech Republic, then the next time you get a Schengen visa in the French embassy it can be difficult. Moreover, if this rule is violated, not only France and the Czech Republic, but also other EU countries, especially pedantic Finland and Germany, who are vigilant to such violations, can refuse to issue a new visa.