Here are the Ways you can block Ads to a great extent on your android phone:
Install ad-blocking software.
Install a Google Play Store app, such AdGuard, AdAway, or Blokada. AdAway is a basic application that blocks advertisements by editing the system’s host file. AdBlock Plus is one of the other ad blocker programmes; it blocks banner advertisements, pop-ups, and more.
Modify your DNS configuration ( works on Android 9 and Higher versions)
Navigate to Private DNS under Settings > Network & Internet > Advanced. Next, select “dns.adguard.com” as the Private DNS Provider Hostname.
Ad-blocking browsers should be used.
Make use of browsers with integrated ad-blocking, such as Firefox Focus or Brave.
Adjust the privacy settings for your ads.
Navigate to Settings in your browser > Security and privacy > Additional privacy options > Advertising > Privacy for ads > Topics for ads. After that, choose the subjects you wish to block
