While ad blockers aim to block most intrusive ads, they may not block every single ad on the internet.
Ad blockers primarily target ads that fit specific criteria, such as pop-ups, autoplay videos, and banner ads. However, some non-intrusive ads that comply with acceptable advertising standards may still be allowed to display.
Ad blockers constantly evolve to stay up-to-date with new ad formats and practices, but it's possible that some ads may occasionally slip through the filters.
Users can often customize their ad blocker settings and report any problematic ads to help improve the ad blocking experience.