Indeed on departure, with the old LGA + Precheck I would feel comfortable arriving 35 minutes before a flight, and that is no longer possible without a significant amount of running. It feels even longer than JFK T8 curb to second pier.
On arrival, going from a D gate to getting an Uber/Lyft used to take 10 minutes, now takes at least 20 requiring a winding walk through multiple shopping areas.

It's a very pretty new terminal, with desirable food options that go beyond hudson news, auntie annes, or that diner-looking place that always had a huge line, but as a convenient airport getting from curb to gate, it fails.