Recently, YouTube started adding a tracking parameter to their share URLs, when using the “share” button on a video. With this, they can track who is sharing videos with who, and under some circumstances even how they are shared. The tracker starts with the question mark in the link you posted and the link works perfectly fine without that part.

This says otherwise

Wdym not feasible? I'm currently doing it on a non rooted android device using Mullvad VPN. Not sure what the telco has to do with ads but you can remove all of that bloatware using adb anyways.

Ads can actually be blocked in apps if you use a VPN that has the ability. Though not all apps will function with a VPN enabled