Agree - one feature that is missed w.r.t. long term customer satisfaction and adoption is long term support for previously delivered features. This is exacerbated when product managers/SW teams are mostly measured on new feature delivery metrics.

The full feature lifecycle and reducing bus-factor across the entire existing product feature set is rarely considered as its not generally captured in OKR metrics.

You could count the number of customer complaints. Oh wait, we’re talking about Google..