Nice solution, thanks for sharing! I And your method should work for any analytics or logging system, not just GA, and will prevent users from loading non-cached versions of the page. Should also improve user privacy slightly (though on the flip side, could harm attribution tracking if you're running Facebook ads).

RewriteCond %{QUERY_STRING} (^|&)fbclid=.*($|&)
RewriteRule . https://www.edukolkata.com%{REQUEST_URI}? [R=301,L]

The good thing is that it will keep the URL clean. I have used this at my site and it works like a charm:

https://www.edukolkata.com/course/list?fbclid=xxxxxxx_xxxxx-xxxxx

Thanks
Prasenjit

Thanks for the clarification mate!

There should be a way to do this in GTM with a Javascript variable that strips out the query string before sending it to GA. However, this would mean delaying the page view tag slightly until the script completes, and seems quite error-prone, like you might inadvertently strip out the wrong parameters at some point. So I'd stick to the GA query string exclusion method, inconvenient as it is.

No, FB is just adding query strings, not creating new pages on your site.