Adding query string for a referral (with ?via for example)

1. can broke the URL such as https://int10h.org/oldschool-pc-fonts/fontlist/?foo. Altering a URL gives you a new URL. The new URL could point to a completely different resource, or to no resource at all, even if the alteration is as small as adding a seemingly harmless query string.
2. There is already the HTTP Referrer header for that. It's governed by the Referrer-Policy

Another post describe this problem: https://chrismorgan.info/no-query-strings