Excludes Query Strings From Caching

Hello,
I need to exclude the query strings on this page from caching:
https://pianohub.it/youtube_class/giri-di-accordi-da-riconoscere/risposte/?ppc=10

I’m not really sure whether to exclude:
1) the entire page
2) Only “ppc” variable

I have different content on that page according to the ppc numeric value. I thought I tried both points but I still have to clear page cache to see the updated content on the page.

Thank you for claryfin how to exclude the whole page or the query strings