After clearing browser settings I can no longer tab-to-search on domain names

I’m on Brave v1.62.153

Sites that support OpenSearch for tab-to-search in the address bar no longer are working. I assume that after I cleared my Brave cache + settings that a flag was tripped but I’m not sure what. How do I re-enable this feature?

This answered my question https://github.com/brave/brave-core/pull/9602