I’d suggest it depends on what you’re wanting to photograph. Below is a bright galaxy shot from my Bortle 7 backyard under a near full moon.
NGC 253
Another is shot under dark skies and a full moon.
NGC 3372
The galaxy under the worst of conditions is probably less impacted than the Nebula under dark but moonlit skies. Shooting small bright objects aren’t as impacted by the moon as large diffuse regions.
So, it depends on your target. Narrowband allows for imaging under anything where as unfiltered, that can depend on what you’re intending to do.