The two things a spreadsheet does better
First, it tracks anything. Not just yes or no, but minutes, pages, weights, reps, cost, whatever you want, with any calculation you can express. No dedicated tracker will ever match that, including this one.
Second, you own it outright. No account, no terms of service, no early-access product that might not exist next year. A file on your drive is the only tracking setup that carries zero platform risk, and for a record you intend to keep for a decade that is a serious argument.