“Can rock with fossils be dated using radioactive decay, and if it can, do they do that?”
Some, but not most, no.
It would have to be a fossil formed by volcanic ash or some similar traumatic event. (Think Pompeii for a recent example.) These are very rare, but do exist in a couple of examples.
Sedimentary where you normally get fossils typically doesn’t work for any kind of radiometric dating, so you have to date those sedimentary layers by layers of other kinds of rock above or below, or by certain events that are consistent world wide so you have a really distinctive marker (e.g., the KT line) that has been dated elsewhere.
So what those little circular things are depicting is a fallacy of over-simplification?