For me, if it need to manually tracked then I will absolutely forget or stop using it because too lazy. Unless you need to track for getting paid or something important.
The website looks clean though, good work!
If you only want to track what are you doing in your laptop or PC, I recommend activitywatch [1], it can detect when AFK and what app or web we open. I only run and forget it and check it later when I want to know what I'm doing this week/month. It's open source and I'm not affiliated with it, just a happy user.