I have a Samsung galaxy s7 edge. The audio plays just fine on the left side, not the right. I know it's the device because all my earbuds play right and left on my laptop. Any suggestions would be much appreciated. I will do my best to supply an additional info you may need.
Can you use a torch to see if there is any lint / debris in the jack port @Leyla20
However I wouldn't recommend to go poking around in there or use air canisters as this could drive foreign bodies further up into the phone.
A Samsung Experience Store / Samsung Service Centre can help further.
Current Phone ~
Samsung Note 20 Ultra 5G SM-9820 _ Samsung One Ui 2.5/ Android 10. Snapdragon 865+