It's very telling when none of the 6+ previews are allowed to mention battery life, due to "reasons" the fact seems to be unless the TDP is configured up to 28w on the 1185G7 top of the range $426 part, then the performance is going to be somewhat lacking from the CPU side. We need to see side-by-side test showing >15w and <15w to get an indication of just what you can really expect.
If I were buying as a consumer I'd want more data before spending my hard earned cash, but if I was buying as a business I'd 100% want to not be the beta testers and would want rock solid data from all angles as the massive egg on face potential if it is found to be worse than 10th Gen parts for battery and sustained every day use not involving the GPU.
I'd not expect to see these in any volume before Q1 '21 either, this is clearly a paper launch preview to put people off buying a competitor part based machine.