seem like a good place to shill my blog about switching browser and search engine. I recommend Librewolf on desktop and Mull on android tho. view this privacy comparison. For search engine, use StartPage, Whoogle (privacy frontend for Google) or SearXNG (search engine aggregator)
It's possible you may have to sideload the app? Which if Mull is as privacy focused as it sounds I guess it makes sense they wouldn't want to be on Google's app store. Someone correct me if I'm wrong though!