Measuring stickiness as weekly active users / quarterly active users?

I expect active users of my product to use it more on a weekly basis than daily.

I was thinking to adapt the stickiness metric DAU / MAU to a longer timeframe, i.e. weekly active users / quarterly active users (last 90 days).

This would also take out any weekday fluctuations in the metrics.

Is this a reasonable approach or is calculating stickiness that way not a good idea?