Ah thank you. I figured the 'Q' stood for quantum but you saved me a fair amount of googling :)
Not sure what browser you use, but in most you can select what you wanna search for, click "Search on $searchEngine for $term" and there you go! For PQC, I get Wikipedia link with "PQC can refer to: Post-quantum cryptography" in the description as the 3rd result on Google.
Not sure what classifies as "fair amount", but for me it took about 1-2 seconds to find the Wikipedia link ;)
A similar situation arises with trains, where it is often better to not hold open the door for someone who is late by a few seconds, as the cumulative delay for everyone else in the train exceeds the waiting period of the single person for the next train.