While the changes in this build might not at first seem too exciting, there's a few things which can be gleaned from the release notes. Firstly, a few of the "annoyance" bugs which have been hanging around for the last few builds (such as Windows incorrectly saying "some settings are managed by your organisation" have been fixed, and clearly much work has gone into "polishing" this build.
Also notable by it's absense is the build identifier string on the desktop. This comes and goes on different builds in the Insider Program, but usually it only "goes" when Microsoft start testing builds as release candidates for a major public release. In other words, the fact that it has disappeared after having been on every build since the RS_1 release, means MS must be getting close to the RS_2 release.
Other changes this week include the usual raft of Edge updates, plus a few fixes for Game Bar. I guess those only really matter to you if you make use of those programs or featuers.