"For my stocks and non-money assets, I opt not to track them super closely in order to avoid having to update the values of each stock every time."

GnuCash's Price Editor can fetch values automatically. It used to be able to use Yahoo finance, but they cut that off a while back. There is a replacement, but I cannot remember what it is at the moment (and am on the work laptop).

GnuCash is actually pretty easy to use, once you get used to the double-entry system and how it handles some things. I have a moderately complex situation (and it's been stupid complex in the past), and I don't spend more than a few minutes a month on it (unless I'm trading stocks; it can take more time to set up each stock's account for proper tracking).