It's also traditional for Star Trek series to burn through showrunners early on, and Discovery has definitely lived up to that tradition. Last season featured the third transition of power, as Michelle Paradise took over as showrunner (or co-showrunner with Alex Kurtzman) and sailed the series in yet another wildly different direction. She's still in the captain's chair for season four however, and it and seems like Discovery may have actually settled down a bit.
There were two major changes behind the scenes this season though: everyone had to deal with COVID-19 protocols, and they got a new AR wall to play with like the one used on The Mandalorian. So there was much less location filming, but they had better fake locations.
Okay, I've written reviews here for these four episodes:
- 4-01 - Kobayashi Maru
- 4-02 - Anomaly
- 4-03 - Choose to Live
- 4-04 - All is Possible