In my experience that still just pushes off the problem one layer. Now you've defined who the team can and can't interact with to an even greater degree than not having anything and it totally kills 'spontaneous' collaboration.

I am absolutely no rejecting the notion that maybe my company is very bad at doing OKRs but for me they have always resulted in "working to the metric" and have totally inhibit team autonomy - you become ruler by the KRs.

EDIT: the first time my company tried OKRs a company culture of collaboration and experimentation was brought to a shuddering halt as everyone stopped trying to do what was best for the business and started trying to hit their OKRs instead.