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Seconds are clearly defined by one specific caesium-133 transition
The second […] is defined by taking the fixed numerical value of the caesium frequency, ΔνCs, the unperturbed ground-state hyperfine transition frequency of the caesium 133 atom, to be 9192631770 when expressed in the unit Hz, which is equal to s−1
I general you need to flash either Magisk or KernelSU by patching to boot image or sideloading in the recovery.
Motorola seems to change bootloader unlocking for every phone, so the easiest way would be making a Windows VM and just do that.
I have found a CLI tool for flashing Qualcomm chips while in download mode, but there’s not really any documentation about it.