Good thinking. Note there are no figures quoted for reversions to the previous O/S. I know of one, me, back to that abysmal failure of 8.1. I’m moving to APPLE eventually as my devices fail barring major changes to their mission. “If it ain’t broke...”
By the way, the installation was flawless but the resulting O/S resembled the aftermath of a hand grenade having been thrown into the works. I’m not into expending time and resources trying to find that which allowed me to get work done. Confusing to say the least. Still going with the tiles eh?