What I am going to suggest may sound weird, but hear me out. 
If you want a minimal and privacy-focused browsing experience, the DuckDuckGo Privacy Browser is a great option. It focuses on protecting your privacy with automatic tracker blocking, enforcing HTTPS connections, and offering anonymous searches. It’s simple, lightweight, and incredibly fast — ideal for users who prioritize security over bells and whistles. DuckDuckGo doesn’t track your browsing history, ensuring maximum privacy.
If you’re a developer or a tester, LambdaTest can help you ensure your website performs well across different browsers, including DuckDuckGo, by testing it on various Android devices. This way, you can optimize your site’s performance, ensuring it loads quickly and securely for privacy-conscious users.
Each of these browsers offers strong privacy and performance features with unique strengths. Whether you prefer the customization of Firefox, the ad-blocking speed of Brave, or the simplicity and privacy of DuckDuckGo — they all deliver a solid Android browsing experience.