For Twitter, it's everything after the question mark. On YouTube (Example link: https://www.youtube.com/watch?v=5bQ_KIgaCIA&si=RknLobL6ebcN_Dw-&t=7168) it's most things other than v= (the video id) and t= (the timestamp), although if you are intentionally linking to a video within a playlist, you should keep list= and index=.
Basically, try to find the part that actually identifies the content being linked to and get rid of the rest, unless it's something helpful like a video timestamp. It's usually the first group of random letters and/or numbers.
http://twitter.com/ultrasexhaver69/status/1750432645572346310?t=AtpzrsSlr-_Z5DhOJbpmEA&s=19
https://www.youtube.com/watch?v=5bQ_KIgaCIA&si=RknLobL6ebcN_Dw-&t=7168
Although if you're using Firefox (you should be), it has a built in feature to copy links without site tracking.
Also install Clear URLs, it will automatically clear the tracking off of any regular link and redirect you to the link without tracking if you do click on one. It also has a tool to manually give it a URL to clear.
And lastly, avoid sites' built in share button where possible. Usually the timestamp on social media posts will be a clear link to said post. Try the timestamp on a Twitter post to see. Or just copy the URL directly from your address bar, making sure it doesn't have any tracking in it.
The point definitely has some merit, but I don't think the average (non-Latino*) white Texan is noticeably visually distinct from the average white American. They're all pretty mayo skinned and don't have any other distinct features. While racial categorization is made up, arbitrary, and subject to change, it still is based on primarily visual features. Like look at Greg Abbot (not for too long though ๐คฎ), there's no visual indication that he's Texan.
But the point definitely stands if you were talking about people from Mediterranean European countries for example. People from Portugal, Spain, Italy, Greece, etc are currently considered white but weren't always.
*While most Latinos are considered white in many demographics surveys (with a separate question for Latino/Hispanic identity), they're quite clearly still considered non-white by a lot of people.