Transfer files between your computer & Android device:
https://support.google.com/nexus/answer/2840804?hl=en
How to copy music and other files to the Google Pixel and Pixel XL phones:
https://recombu.com/mobile/article/how-to-copy-transfer-music-files-google-pixel-and-pixel-xl-phone#
Common Samsung Galaxy S8 problems and how to fix them:
https://www.digitaltrends.com/mobile/common-galaxy-s8-problems-and-how-to-fix-them/