What are the best settings for Shields?
This is a difficult one to answer as it depends on your preferences. The default settings will block a lot but isn’t as solid as it could be. This is because it goes by moderate settings to avoid possibly breaking websites.
However, as time has gone by, it seems like it’s better to activate special filters and to increase the settings. The overall recommendation is:
GLOBAL SETTINGS
Content Filters
NOTE
Keep in mind you have a higher chance of breaking sites or experiencing issues with the more filters under Content Filtering you have active. So I wouldn’t go crazy with it and you usually can have little to no issues just using Fanboy Annoyances and uBlock Annoyances on your device. Though you may need to activate a region specific one if you’re outside of the USA and still seeing ads on content designed for your region.