The latest 5G standard is not supported by the Pixel 7 line
Power saving features in Release 16 of 3GPP
For example, Qualcomm wrote: “Release 16 introduced several new power saving features. For example, a new wake-up signal (WUS) can inform the device whether a transmission is pending, or leave it in sleep mode, skipping the next low-power DRX monitoring period (discontinuous reception). Others include optimized low-power settings, overhead reduction, and more efficient power control mechanisms.”
Googler reveals that the Pixel 7 series started with Release 15
The Pixel 8 and Pixel 8 Pro are likely to be powered by the Google Tensor 3 SoC, but both are expected to feature the same Exynos 5300 5G modem chip that will be used in the 2022 Pixel models. Samsung’s website states that the Exynos 5300 is “3GPP Release 16 Compatible”.
In case you were wondering, the iPhone 14 series with the Snapdragon X65 5G modem supports Release 16. The Galaxy S22 series also supports Release 16.