You might as well use uBlock Origin Lite. The point is that all of these options are less powerful because of the limitations of manifest v3. Instead of downgrading the effectiveness, they’ve opted to release a separate less powerful option so that it’s clear to the end user that it’s less effective than what was available with manifest v2.
Yeah... The thing is surgical or cloth masks don’t do much against PM2.5. For actual pollution, you’d need a well-fitted N95 — anything less is mostly placebo with ear loops.