Yes, exactly. Incoming zaps go via zaps.lol to the wallet via Lightning address. Works well too. However, if I send zaps, they go via nwc via the olympus channel with 1 sat fee and are then forwarded via another channel (always different) to e.g. Alby. These channels usually take fees of about 1000sats. In Zeus is set in the payments 1sat resp. 0.1%