I’ve just ended a long term friendship for a few similar reasons (there was more to it but they were my main issues and she just wouldn’t put the effort in to help resolve them), e.g. she was on her phone a lot, playing games or we would watch YouTube videos on it. I think that’s ok if you want to show someone something you think they’d find interesting, but not to use it as a substitute for conversation.
Your friend sounds like they’re not that invested in friendship with you, and you’re perfectly within your rights to feel the way you do. It’s supposed to work both ways, not just one giving and the other taking/offering crumbs in return.
I can understand why you feel like backing off from them. Having no friend is always better than having one that takes you for granted.