History and theory say that in cases like the US today, they “work” best together. See: integration of lunch counters c1960s (history), see diversity of tactics (theory).
First, the ongoing protests, even when the MSM loses interest in them, still serve the direct result of keeping police brutality down (outside of suppressing the protests), documenting just how violent the police are, and also of great importance: stressing if not bankrupting the police departments and local jurisdictions.
The bigger answer is every action builds upon previous actions.
Millions of people have taken to the streets. Tens of millions know them personally. Tens of millions just found out that the cops can be stood up to. Hundreds of thousands have been radicalized (at least). Personal connections that’ll last a lifetime in the communities of opposition have been forged. All important experience on the streets and jails has been learned. Communities have been founded.
And… it’s worth doing for the sake of doing it. I really can’t stress this enough. These are the times of our lives. All those privileged enough should give it a try. Being on the streets and yelling “who’s street, our street”… and it actually being true at that moment… is a high you just can’t buy.