YugaByte product manager here -- have documented the answer to your question [1] As you can see, there are many similarities but there are also a few important differences such as depth of PostgreSQL compatibility (YB reuses PostgreSQL query layer while CRDB is a re-implementation) and latency/throughput observed for modern OLTP workloads.
True, but note that the comparison only focuses on SQL (as it related to PostgreSQL) features and not any DB-specific features.
The YugaByte DB specific pieces are not included as well - for example, support for YCQL (Cassandra-compatible) and YEDIS (Redis-compatible) APIs to the DB.
[1] https://docs.yugabyte.com/latest/comparisons/cockroachdb/