Try reading the release notes for this update plus the previous 10 sim updates. There’s a lot more than “stuff” in there if you bothered to look. The sim is night and day v the launch version now.
The devs are seeking feedback on the replay system they’ve made available, but have had little feedback. Feel free to try it out and provide them with some to help them improve it.
3rd party solutions work, but there are limitations, and it is these that Asobo are grappling with too. Everyone’s idea of a good replay tool is different.