The dam sluices were Russian controlled but the dam is on the front line. It easily could have been attacked by either side.

Wrong, you don't destroy a dam just like that. It takes preparation and a lot of explosives at the right points. This is not a Micahel Bay movies we're talking about.

Both sides will see flooding but moreso the Russian side because it’s flatter. Breaching the dam will empty the canal providing much-needed water to Crimea. The lower water level upstream could threaten the safety of an offline nuclear plant upriver. I can’t tell which side controls the plant, so I’m not sure who that would affect more.

And Putin doesn't care about all of that. He has proven it again and again.

I can’t tell which side controls the plant

Russia, They took control of the plant, which is illegal, all nations around the globe know perfectly that no army should take control of a civilian power plant. Every other army is trained to carefully avoid the nuclear power plants. For some reason Russia keeps ignoring the international laws.

But Ukraine could have done it for the reasons stated.

Nonsense, but keep trying

We’re definitely still in the fog of war and it’s ignorant to assume we know all the details.

Textbook Russian propaganda here -> "Nobody knows for sure".... Well, keep telling you that, nobody believes you west of Russia.

The dam was under Russian control and they sabotaged it to slow down the Ukrainian counter offensive. It's fine, Ukraine knew it was a possibility and they have plans accounting for it.