Ad blocking != block tracking. If you don’t want to get tracked, turn on Do Not Track in your browser. Matomo and most other privacy focused analytics scripts respect that setting.
While I agree that is the proper solution, most analytics do not respect the Do Not Track header. Beyond it being mostly ignored, Safari (which currently has 20% global browser share) removed support for Do Not Track in 12.1. So even though Matomo might respect the header request, there is no way for me to send that header on many of my devices. Blocking is the only solution left to me to 'opt out' of tracking regardless of the good intentions of Matomo.
Sure, so I have tracking protection too both through uBlock Origin, and Firefox' tracking protection feature. Yet, here you are, bypassing my tracking protections.
If you're using Firefox tracking protection (which I'm guessing using DNT as well), then Matomo by default does not track you though. So no, your tracking protections aren't being bypassed.