By default, uBO blocks ads and trackers.
You should not use any other content-blocking extensions with uBO. Doing so can prevent uBO's privacy or anti-blocker-defusing features from working correctly, including the fixes for YouTube anti-adblock.
Privacy Badger is a content-blocking extension that can certainly cause problems and interfere with uBO.
And since 2020, Privacy Badger defaults to using only using static filters which provides no real benefit over uBO. It used to "learn" about trackers, but this was turned off as a default because of serious security and fingerprinting concerns.
All of this is covered in detail here:
Privacy Badger Is Changing to Protect You Better
TL;DR: Just use uBO.