16:9 or 16:10 or 4:3? How could I consider to choose?

I have already made some android app (apk file). I tried to install those apk files to different Android device e.g. Samsung Galaxy S9, Samsung Galaxy Tab, Samsung Galaxy A20 etc. I found that different devices displayed a little bit different in layout. Could I know how could I consider to choose 16:9 or 16:10 or 4:3?

Thanks in advance.


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