For starters, it boasts a 6.5" LCD (FHD+ resolution) with a refresh rate of 90Hz, whereas the G42 has a 6.4" AMOLED with a refresh rate of 60Hz.
Although all three phones feature 5,000mAh batteries, only the new G32 and the more expensive G52 offer 30W fast charging. Consider the G32 to be a less expensive, LCD-equipped counterpart of the G52.
In terms of photography capabilities, there is a 50MP primary module with a compact 1/2.76" sensor (0.64m pixels) on the front, as well as an 8MP 118° ultra wide-angle camera and a 2MP macro module on the rear. A punch-holed 16MP selfie camera is located on the front (with a Quad Bayer filter). Video capture is limited to 1080p At 30fps, whether due to a chipset constraint or otherwise.