This is false and shown to be false per "Pascal's Wager" writtings.
Fear of God properly applied (not tricking yourself you fear god) makes you want to know truth and not risk attributing him falsehood and not following evil people claiming to represent him and not attribute him fabrications.
Christianity, Islam or any religion, in Pascal's Wager is a placeholder variable. The argument doesn't depend on it being true, but of course, Pascal believe in Christianity so made a toolkit of how a person would arrive at that through his wager and how his wager worked.
I agree there is a distaste if Christianity is false making Pascal a hypocrite if that is true, but in theory, fear of God doesn't make you accept a false religion.
And if happens to be that no religion is true, which is part of his wager potential analysis, then really, fear of God might make you sacrifice some time in seeking truth but there is no big harm in that. Seeking truth also doesn't have to be done in a boring way. You can have fun in the process, even find building knowledge of truth and toolkit beneficial to your life, career, intellect, etc...
Of course, fear of God should never make you stick to a false religion because it threatens with hell. That would make Islam and Christianity for example cancel out each other. Pick which one? Both threaten with hell.
This is the irrational approach. Not saying many humans don't irrationally get bullied by fear, but this is not the purpose of the warning and caution of God regarding himself.
It's to take God seriously and his sent ones seriously, that you look for the true chosen and try to recognize the truth, and put a strived effort for truth. If the truth was there was no true religion, then, in theory, building a truth seeking kit, would not make you arrive at a false religion.
Again, this is explained in detail in Pascal's Wager, but people know it either in a very strawman false way or if they took university courses teaching it in some detail, still strawman it and don't account Christianity is a variable that can be substituted with another variable and it doesn't rely on Christianity being true.