The 2023 version of the Lenovo ThinkPad T14 uses Intel CPUs of the Raptor Lake series. With the new CPUs, the power usage seems to be lower compared to the predecessor, but apart from this, the Lenovo ThinkPad T14 Gen 4 Intel does not seem like a big upgrade.https://www.notebookcheck.net/Lenovo-ThinkPad-T14-G4-Intel-Laptop-Review-Raptor-Lake-update-for-the-T-series.748145.0.html
Until intel changes its iGPU the current Xe IRIS with which you cannot render CAD, 3D CAM or play AAA games I do not plan to buy any intel laptop, since AMD with its iGPU RDNA 3 if possible. Other problems with intel is that they have been stuck for 4 years with their manufacturing process at 10nm + + + + while AMD with SSTMC are at 4nm the difference is very large.
What the previous review of HP and this Lenovo clearly shows is that both laptops do not match their price, with performance from 2020...
Both reviews are also not filtered by the topic of laptops, which is strange.
Are you dimensions for the HP EliteBook 845 G10 correct? I get 315.6 x 224 x 19.2 mm from HP site??