As much as I love the idea of them I've found systems like these never quite work for me in the real world. There's always a ticketing system for my employer where that stuff lives, and for personal stuff I absolutely need first class mobile support because that's generally the device I have with me when I remember something I need to do.

After many years I've eventually landed on using [work ticket tracker] for work tracking, Apple Reminders for todo lists which are rarely complex items, and Logseq for journaling. My journal really is just that, I rarely go back to previous entries, but I find it helpful to spend a bit of time each day just noting down what I did and how I felt about it. I sometimes joke that this is my insurance policy in case the Police knock on my door and ask me what I did on the 12th of March this year.