I'm loving Logseq. It's the open source software I support monthly. It (plus what I learned from "Building a Second Brain" by Tiago Forte) changed my life. Having a low-barrier (daily journal everything) place to dump everything (easily discoverable later with back-linking tags) helps me manage my ADHD.
I highly recommend it. Once you wrap your head around the idea that the daily journal is where you dump just about everything, it's pretty smooth sailing. (The daily journal automatically dates everything, then the pages themselves automatically pull a reverse chronological feed of every time you wrote about the thing, and queries allow for more targeted, dynamic searching, like all tasks due in the next week, or all tasks for the project, etc.)