the above will decrease the amount of ads you see system-wide. however: hands down the BEST ANDROID ADBLOCKING feature is the ability to install Firefox with uBlock Origin enabled.
Install Firefox -> Settings -> Extensions -> uBlock Origin
this only blocks browser ads, but HOLY SHIT does that matter if you try browsing websites over apps when possible. which you should bc it's awesome and gives you SO much more control. E.g. blocks youtube.com ads and you can play videos in the background. works with spotify.com too
Pro tip: toggle on 'Desktop site' to avoid mobile sites that are purposely designed to bully you into using the app. Desktop mode fixes a surprising number of problems
Note: for iOS users this isn't available bc Apple hates your guts, but there are other browser options with built-in adblocking, e.g. Firefox Focus, Brave