While this was true for me for a long time, basically my notes were useless in my day to day life, this has changed for me with Obsidian.
I now actually go back and curate my notes into a kind of wiki that is meant just for me. I've tried running a wiki for my self, but it doesn't work offline. And I tried just using plain text or OrgMode, but they were impossible to deal with on my phone. It just strikes that perfect amount of customization and cross-platform support that I needed to make it somewhere I trust storing the information. And in the end it really is still just a bunch of markdown files in a git repo (thanks Working Copy!) so I am not really locked in like I was with any other apps I've used.
I now actually go back and curate my notes into a kind of wiki that is meant just for me. I've tried running a wiki for my self, but it doesn't work offline. And I tried just using plain text or OrgMode, but they were impossible to deal with on my phone. It just strikes that perfect amount of customization and cross-platform support that I needed to make it somewhere I trust storing the information. And in the end it really is still just a bunch of markdown files in a git repo (thanks Working Copy!) so I am not really locked in like I was with any other apps I've used.