Any good examples of request-policy-exchange?

[RIP21]

Any good examples of https://formidable.com/open-source/urql/docs/api/request-policy-exchange/ ?
When I first saw it I thought that it will enable a very precise centralized approach to refreshing cached data.
Similar to, let stay, Graphcache cacheExchange config like { updates: {...} } where you can specify a strategy for each mutation/subscription.
Here I thought will be the same but for each root query, so if you can make it like.

requestPolicyExchange({
  operations: {
     Query: {
         me: {
             ttl: 60000,
             shouldUpdate: () => {...} // If that is even needed TBH
         }
      }
  }
})

So you can kinda make ttl per field on Query type and then add some callback shouldUpdate logic where you can override upgrade to cache-and-network but only for this specific field.
But it's definitely different :)
So, even tho it gives a bit more control, it feels like it's still not as granular as I would expect it to be as for different Query fields I may want to have different ttl.
So the only option is to keep ttl for other operations to be in local storage (for offlineCache case only tho) and set ttl to the shortest ttl you expect, and for other queries that you expect to be upgraded after few hours let say actually return false in shouldUpdate and ignore for those that you're fine with default ttl.

Dunno, hard to understand how this helps, so maybe I'm getting it wrong :) I guess sort of useEffect here and there that will flip cache-and-network after some time, may work better :D

And is it expected to work fine with offlineCache? Any tradeoffs or gotchas?