I say wiki as a point of reference, as it’s the thing I’m most used to for organizing information, but anything that lets me create links on specific words, leading me to a different page/display can work.
I prefer FOSS, but anything that’s a free download on the play store is fair game, TrackerControl should manage to block annoying ads.
Obsidian
I use Logseq, which is FOSS, privacy first, and runs on pretty much everything.
Gave it a whirl, for some reason it takes a weird long time (~8 seconds) to startup on my phone, galaxy S8. It also insists on creating a new page for today for some reason, even after I created a different page and tried to delete the dated one, is there an option to disable that?
I couldn’t find oneOk, found it, have create a page to act as the home, disable Journals and set the home page on the setting. Still scratching my head over the startup time, but it seems like this can work
What about Obsidian?