Is there a way to track users' time spent or actions taken in QuickBase?

The only thing close to that is Audit Logs in the Admin Console. It isn't exactly what you want but it shows you from a high level view what actions a user has done but it doesn't cover everything and you need to set what fields to monitor. This feature is only included in Platform or above plans, so I'm not sure where you fall in that. I definitely wouldn't upgrade just for this. From what I understand they do plan on making this a lot better but that could be a long time away.

https://help.quickbase.com/user-assistance/audit_logs.html