Android 10 system and vendor images are larger than the file sizes mentioned here so a few more MB's have been added so it will fit + a few more just in case newer builds decide to take up more space
I'm keeping minimal partition size as a baseline.
And genuine android-10 build still has some margin with current values.
Forked projects can increase the size for their purpose.
Android 10 system and vendor images are larger than the file sizes mentioned here so a few more MB's have been added so it will fit + a few more just in case newer builds decide to take up more space