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Only if used as primary DNS service for whole network, however, has no where near the options pihole or adguardhome have; my limited experience is with it in opnsense, so by far isn't complete but I disable it and forward everything to adguardhome.
What it can do in opnsense (for an example of what can be done with it, blocklist near bottom): https://docs.opnsense.org/manual/unbound.html
Only if used as primary DNS service for whole network, however, has no where near the options pihole or adguardhome have; my limited experience is with it in opnsense, so by far isn't complete but I disable it and forward everything to adguardhome.
What it can do in opnsense (for an example of what can be done with it, blocklist near bottom): https://docs.opnsense.org/manual/unbound.html